First Published: July 28, 2023

Last Updated: September 4, 2025

Release Notes for Cisco Embedded Wireless Controller on Catalyst Access Points, Cisco IOS XE Dublin 17.12.x

Introduction to Cisco Embedded Wireless Controller on Catalyst Access Points


Caution

Problem Description: Authentication fails when attempting to upgrade software using the "CCO mode" in Cisco Embedded Wireless Controller (EWC) on a Cisco Catalyst Access Point (EWC-AP). This issue occurs when attempting to upgrade from a software release prior to one of the following releases: 17.3.x, 17.6.x, 17.9.5, 17.12.3, and 17.14.1.

Background: From May 1, 2024, onwards, Cisco Connection Online (CCO, known as cisco.com) will use a new authentication system for EWC-AP. This system is not backward compatible with the earlier EWC-AP software releases. EWC-AP software developed after January 31, 2024, will be able to authenticate with Cisco.com, before and after May 1, 2024. The releases include: 17.9.5 and later, 17.12.3 and later, and 17.14.1 and later.

Workaround: Download the desired EWC-AP image and load it into the EWC-AP over TFTP, SFTP, or (Desktop) HTTP.

Upgrade to one of the following releases:

  1. 17.9.5 or later

  2. 17.12.3 or later

  3. 17.14.1 or later

After the upgrade, the CCO method for upgrades will work.

For more information, see Field Notice: FN74124.

The Cisco Embedded Wireless Controller on Catalyst Access Points is a version of the Cisco IOS XE-based controller software on Catalyst access points (AP). In this solution, a Catalyst AP that is running the Cisco Embedded Wireless Controller on Catalyst Access Points software, is designated as the primary AP. Other APs, referred to as subordinate APs, associate to this primary AP.

The Cisco Embedded Wireless Controller on Catalyst Access Points provides enterprise-level WLAN features while maintaining operational simplicity and affordability. This solution is targeted at small and medium-sized business (SMB) customers or distributed enterprises, and can be run at single site deployments.

  • The controllers come with high availability (HA) and seamless software updates. This keeps your services on always, both during planned and unplanned events.

  • The deployment can be managed using a mobile application, Cisco Catalyst Center, Netconf/Restconf, web-based GUI, or CLI.

What's New in Cisco Embedded Wireless Controller on Catalyst Access Points, Cisco IOS XE Dublin 17.12.6

There are no new features in this release.

What's New in Cisco Embedded Wireless Controller on Catalyst Access Points, Cisco IOS XE Dublin 17.12.5

There are no new features in this release.

What's New in Cisco Embedded Wireless Controller on Catalyst Access Points, Cisco IOS XE Dublin 17.12.4

There are no new features in this release.

What's New in Cisco Embedded Wireless Controller on Catalyst Access Points, Cisco IOS XE Dublin 17.12.3

There are no new features in this release.

What's New in Cisco Embedded Wireless Controller on Catalyst Access Points, Cisco IOS XE Dublin 17.12.2

There are no new features in this release.

This release provides a fix for CSCwh87343: Cisco IOS XE Software Web UI Privilege Escalation Vulnerability. For more information, see Security Advisory: cisco-sa-iosxe-webui-privesc-j22SaA4z.

What's New in Cisco Embedded Wireless Controller on Catalyst Access Points, Cisco IOS XE Dublin 17.12.1

Table 1. New and Modified Software Features

Feature Name

Description and Documentation Link

Archive less than 1 day

The request platform software trace archive last command has been enhanced to archive all the trace logs relevant to all the processes running on a system.

FIPS 140-3 Compliance

This release enables all COS APs to achieve FIPS 140-3 compliance, ensuring adherence to security standards. The Cisco Catalyst 9800 controllers, however, are FIPS 140-2 compliant.

Caution

 

Downgrading to versions below 17.12.1 can have a negative impact on COS APs in the following scenarios:

  • When FIPS or WLANCC security modes are enabled.

  • When the ECDHE-RSA-AES128-GCM-SHA256 cipher suite is not selected for AP DTLS (by default it is selected).

Note

 

There is no impact on the Cisco IOS AP models.

The show wireless certification config command has been introduced to verify whether downgrade is impacted or not.

For more information, see the chapter FIPS.

Improve Crash Data Collection, Kernel Panics, Out of Memory

A new command is introduced to limit the number of kernel core dumps collected on the AP:

  • core-dump kernel limit

Intelligent Capture (iCAP) Hardening

This feature aims at making troubleshooting for wireless clients and APs easier.

In this release, the following enhancements are made to the iCAP feature:

  • Anomaly Detection

  • RF Statistics

The following commands are introduced:

  • icap subscription client anomaly-detection report-individual enable

  • icap subscription client anomaly-detection report-individual per-client throttle

  • icap subscription client anomaly-detection report-individual per-type throttle

  • ap name icap subscription client anomaly-detection report-individual enable

  • ap name icap subscription client anomaly-detection report-individual per-client throttle

  • ap name icap subscription client anomaly-detection report-individual per-type throttle

For more information, see the chapter Intelligent Capture Hardening.

MacBook Analytics

This feature is supported on the controller when the MacBook device sends 11k action frames along with the model information.

For more information, see the chapter Device Analytics.

Mesh Support in Cisco Catalyst 9130AX Series Access Points

From this release, mesh support is included in the Cisco Catalyst 9130AX Series Access Points.

All traditional capabilities of mesh are included in the Cisco Catalyst 9130AX Series APs operating in Cisco IOS XE Dublin 17.12.1.

For more information, see the chapter Mesh Access Points.

Modified Trustpoints for Secure Unique Device Identity (SUDI) Certificates

From Cisco IOS XE Dublin 17.12.1 onwards, the following changes have been introduced for trustpoints:

  • Trustpoint names for existing SUDI certificates

    If your device supports Cisco Manufacturing CA III certificate and is not disabled, the trustpoint names are as follows:

    • For Cisco Manufacturing CA III certificate, the trustpoint name has changed from CISCO_IDEVID_SUDI to CISCO_IDEVID_CMCA3_SUDI

    • For Cisco Manufacturing CA SHA2 certificate, the trustpoint name has changed from CISCO_IDEVID_SUDI_LEGACY to CISCO_IDEVID_CMCA2_SUDI

    If your device does not support Cisco Manufacturing CA III certificate or if the certificate is disabled using no platform sudi cmca3 command, the trustpoint names are as follows:

    • For Cisco Manufacturing CA SHA2 certificate, the trustpoint name has changed from CISCO_IDEVID_SUDI to CISCO_IDEVID_CMCA2_SUDI

    • For Cisco Manufacturing CA certificate, the trustpoint name has changed from CISCO_IDEVID_SUDI_LEGACY to CISCO_IDEVID_CMCA_SUDI

  • show wireless management trustpoint command output

    If Cisco Catalyst 9300 Series Switch is used with a Cisco Catalyst 9800 Series Wireless Controller for wireless deployments, the trustpoint name in the output of show wireless management trustpoint command is updated to the modified trustpoint name as mentioned previously.

    The following example shows a sample output of show wireless management trustpoint command. Note that if your device does not support Cisco Manufacturing CA III certificate or if the certificate is disabled, the Trustpoint Name in the following output displays CISCO_IDEVID_CMCA2_SUDI. 

    
Device# show wireless management trustpoint
Trustpoint Name  : CISCO_IDEVID_CMCA3_SUDI
Certificate Info : Available
Certificate Type : MIC
Certificate Hash : <SHA1 - hash>
Private key Info : Available
FIPS suitability : Not Applicable

  • show ip http server status command output

    If you configure the trustpoint for the HTTP server as CISCO_IDEVID_SUDI, the output of show ip http server status command displays the operating trustpoint along with the configured trustpoint.

    The following example shows a sample output of show ip http server status command with both the configured and the operating trustpoint names. Note that if your device does not support Cisco Manufacturing CA III certificate or if the certificate is disabled, the operating trustpoint in the following output displays CISCO_IDEVID_CMCA2_SUDI. 

    
Device# show ip http server status
…
HTTP secure server trustpoint: CISCO_IDEVID_SUDI
HTTP secure server operating trustpoint: CISCO_IDEVID_CMCA3_SUDI

Rogue Channel Width

From this release, you can specify the channel width and the band for rogue detection.

The following command is introduced:

  • condition chan-width

For more information, see the chapter Radio Resource Management.

Rogue PMF

From this release, the controller will contain rogue APs with 802.11w Protected Management Frame (PMF) on centrally switched WLANs.

The following commands are introduced:

  • rogue detection containment pmf-denial

  • pmf-deauth

For more information, see the chapter Radio Resource Management.

Software Entropy Enhancement for FIPS 140-3

From Cisco IOS XE Dublin 17.12.1 onwards, Federal Information Processing Standard (FIPS) 140-3 is supported as a security standard to validate cryptographic modules.

Table 2. New and Modified GUI Features

Feature Name

GUI Path

Rogue Channel Width

  • Configuration > Security >Wireless Protection Policies > Rogue AP Rules

Behavior Change

From Cisco IOS XE Dublin 17.12.1 onwards, EWC supports a reduced scale of APs and clients for the following APs:

EWC AP

Current Scale (Maximum APs Supported / Maximum Clients Supported)

New Scale (Maximum APs Supported / Maximum Clients Supported)

Cisco Catalyst 9120AX Series Access Points

100 APs/2000 clients

50 APs/1000 clients

Cisco Catalyst 9124AX Series Access Points

100 APs/2000 clients

50 APs/1000 clients

Cisco Catalyst 9130AX Series Access Points

100 APs/2000 clients

50 APs/1000 clients

Note

Starting from Cisco IOS XE Dublin 17.12.1 onwards, the maximum supported scale in Cisco Catalyst 9120AX Series APs, Cisco Catalyst 9124AX Series APs, and Cisco Catalyst 9130AX Series APs, has been reduced to 50 APs from 100 APs and 1000 clients from 2000 clients.

Behavior Change for Cisco IOS XE 17.12.6

  • Controller displayed out-of-order packet issue with fragmented packets when Auto QoS was enabled. When a client tries to connect to an EAP-TLS-based SSID, during the certificate exchange, the client sends its device certificate. If the certificate is fragmented because it exceeds the MTU (1500), the fragments are observed to be sent out-of-order from the controller when Auto QoS is enabled.

    With the change in behavior, the fragments are classified and applied with default action. For workarounds, refer to CSCwo97886.

  • The ip proxy-arp configuration is disabled by default under VLAN interfaces for the controller.

  • For Cisco Aironet 1815T Series AP, from Cisco IOS XE 17.12.x, .../storage/config.oeap was created beforehand as long as the AP is in OEAP mode.

    With the change in behavior, once the AP boots in FlexConnect OEAP mode, it switches on the default OEAP DHCP server (dhcp0) as day 1 configuration.

  • The maximum supported RFIDs per WNCD for any platform has been increased to greater than 9601 RFIDs. The new value of the maximum RFID is platform dependent.

  • Authentication for AP with EAP fails if the password is more than 31 characters. With the change in behavior, password with more than 31 characters works successfully.

  • When you apply an AP tag configuration, ensure that the number of APs associated with a non-default site tag does not exceed the platform limit. The system allows these configurations, but APs exceeding the limit cannot join the network.

    The configuration validator now checks for this condition and when more APs than the platform limit are associated with the same site tag, the configuration is not rejected.

  • Cisco Catalyst 9105 AP bridges the RLAN traffic to a wrong VLAN.

    To prevent this issue:

    • Delete any unused VLAN from the FlexConnect profile.

    • Run the capwap ap erase all command to clear the AP cache.

Interactive help

Interactive help is a user interface feature that

  • provides step-by-step guidance within the application

  • adapts instructions and walk-throughs to the user's context, and

  • assists users in completing complex configurations or navigating the system.

Modes of starting the interactive Help

You can start the interactive help in the these ways.

  • Hover over the blue flap at the right-hand corner of a window in the GUI and clicking Interactive Help.

  • Click Walk-me Thru in the left pane of a window in the GUI.

  • Click Show me How whenever displayed in the GUI. Clicking Show me How triggers a specific interactive help that is relevant to the context you are in.

    For example, Show me How in Configure > AAA walks you through the various steps for configuring a RADIUS server. Choose Configuration> Wireless Setup > Advanced and click Show me How to trigger the interactive help that walks you through the steps relating to various kinds of authentication.

Additional troubleshooting information

If the WalkMe launcher is unavailable on Safari, modify the browser settings.

  1. Choose Preferences > Privacy.

  2. In the Website tracking section, uncheck the Prevent cross-site tracking check box to disable this action.

  3. In the Cookies and website data section, uncheck the Block all cookies check box to disable this action.

Supported Cisco Access Point Platforms

The following Cisco access points are supported in the Cisco Embedded Wireless Controller on Catalyst Access Points network. Note that the APs listed as primary APs can also function as subordinate APs.

Table 3. Cisco APs Supported in Cisco Embedded Wireless Controller on Catalyst Access Points

Primary AP

Subordinate AP

Cisco Catalyst 9115 Series

Cisco Catalyst 9117 Series

Cisco Catalyst 9120 Series

Cisco Catalyst 9124AXE/I/D

Cisco Catalyst 9130

Cisco Catalyst 9105AXI

Cisco Aironet 1540 Series

Cisco Aironet 1560 Series

Cisco Aironet 1815i

Cisco Aironet 1815w

Cisco Aironet 1830 Series

Cisco Aironet 1840 Series

Cisco Aironet 1850 Series

Cisco Aironet 2800 Series

Cisco Aironet 3800 Series

Cisco Aironet 4800 Series

Cisco Catalyst 9115 Series

Cisco Catalyst 9117 Series

Cisco Catalyst 9120 Series

Cisco Catalyst 9124AXE/I/D

Cisco Catalyst 9130

Cisco Catalyst 9105AXW

Cisco Catalyst 9105AXI

Cisco Catalyst Industrial Wireless 6300 Heavy Duty Series Access Points

Cisco 6300 Series Embedded Services Access Points
Table 4. Image Types and Supported APs in Cisco Embedded Wireless Controller on Catalyst Access Points

Image Type

Supported APs

ap1g4

Cisco Aironet 1810 Series

Cisco Aironet 1830 Series

Cisco Aironet 1850 Series

ap1g5

Cisco Aironet 1815i

Cisco Aironet 1815w

Cisco Aironet 1540 Series

Cisco Aironet 1850 Series

ap1g6

Cisco Catalyst 9117 Series

ap1g6a

Cisco Catalyst 9130

Cisco Catalyst 9124AXE/I/D

ap1g7

Cisco Catalyst 9115 Series

Cisco Catalyst 9120 Series

ap1g8

Cisco Catalyst 9105 Series

ap3g3

Cisco Aironet 2800 Series

Cisco Aironet 3800 Series

Cisco Aironet 4800 Series

Cisco Aironet 1560 Series

Cisco Catalyst Industrial Wireless 6300 Heavy Duty Series Access Points

Cisco 6300 Series Embedded Services Access Points

Maximum APs and Clients Supported

Table 5. Scale Supported in Cisco EWC Network

Primary AP Model

Maximum APs Supported

Maximum Clients Supported

Cisco Catalyst 9105 AWI

50

1000

Cisco Catalyst 9115 Series

50

1000

Cisco Catalyst 9117 Series

50

1000

Cisco Catalyst 9120 Series

50

1000

Cisco Catalyst 9124AXE/I/D

50

1000

Cisco Catalyst 9130

50

1000

Note

  • If 25 to 50 APs have joined the EWC network, the maximum clients on the EWC internal AP is limited to 20.

Compatibility Matrix

The following table provides software compatibility information:

Table 6. Compatibility Information

Cisco Embedded Wireless Controller on Catalyst Access Points

Cisco ISE

Cisco CMX

Cisco Catalyst Center

Dublin 17.12.x

3.2

3.1

3.0

2.7

10.6.3

10.6.2

10.6

10.5.1

See Cisco Catalyst Center Compatibility Information

Supported Browsers and Operating Systems for Web UI


Note

The following list of Supported Browsers and Operating Systems is not comprehensive at the time of writing this document and the behavior of various browser for accessing the GUI of the EWC is as listed below.

Table 7. Supported Browsers and Operating Systems

Browser

Version

Operating System

Status

Workaround

Google Chrome

77.0.3865.120

macOS Mojave Version 10.14.6

Works

Proceed through the browser warning.

Safari

13.0.2 (14608.2.40.1.3)

macOS Mojave Version 10.14.6

Works

Proceed through the browser warning.

Mozilla Firefox

69.0.1

macOS Mojave Version 10.14.6

Works only if exception is added.

Set the exception.

Mozilla Firefox

69.0.3

macOS Mojave Version 10.14.6

Works only if exception is added.

Set the exception.

Google Chrome

77.0.3865.90

Windows 10 Version 1903 (OS Build 18362.267)

Works

Proceed through the browser warning.

Microsoft Edge

44.18362.267.0

Windows 10 Version 1903 (OS Build 18362.267)

Works

Proceed through the browser warning.

Mozilla Firefox

68.0.2

Windows 10 Version 1903 (OS Build 18362.267)

Works

Proceed through the browser warning.

Mozilla Firefox

69.0.3

Windows 10 Version 1903 (OS Build 18362.267)

Works only if exception is added.

Set the exception.

Google Chrome

78.0.3904.108

macOS Catalina 10.15.1

Does not work

NA

Before You Upgrade

  • (#CSCwn29592) EWC running the Cisco IOS XE 17.12.x image on Cisco Catalyst 9124AX APs or 9130AX APs is sometimes unable to load Cisco IOS XE 17.15.2 image due to space constraints.

    Workaround:

    • Downgrade first to Cisco IOS XE Cupetino 17.9.6 and then upgrade to Cisco IOS XE 17.15.2.

  • The following Remote Procedure Call (RPCs) should be used for Cisco Catalyst 9800 Series Wireless Controller and Cisco Embedded Wireless Controller:

    • Cisco Catalyst 9800 Series Wireless Controller: Use ewlc-wncd-stats within Cisco-IOS-XE-wireless-ap-global-oper.

    • Cisco Embedded Wireless Controller: Use ewlc-wncd-stats within Cisco-IOS-XE-wireless-access-point-oper.

Upgrade Path to Cisco IOS XE Dublin 17.12.x

Table 8. Upgrade Path to Cisco IOS XE Dublin 17.12.x

Current Software

Upgrade Path for Deployments with 9130 or 9124

Upgrade Path for Deployments Without 9130 or 9124

16.10.x

—

Upgrade first to 16.12.5 or 17.3.x and then to 17.12.x.

16.11.x

—

Upgrade first to 16.12.5 or 17.3.x and then to 17.12.x.

16.12.x

Upgrade first to 17.3.5 or 17.6.x or later and then to 17.12.x.

Upgrade first to 17.3.5 or 17.6.x or later and then to 17.12.x.

17.1.x

Upgrade first to 17.3.5 or 17.6.x or later and then to 17.12.x.

Upgrade first to 17.3.5 or 17.6.x or later and then to 17.2.x.

17.2.x

Upgrade first to 17.3.5 or 17.6.x or later and then to 17.12.x.

Upgrade first to 17.3.5 or 17.6.x or later and then to 17.12.x.

17.3.1 to 17.3.4

Upgrade first to 17.3.5 or 17.6.x or later and then to 17.12.x.

Upgrade first to 17.3.5 or 17.6.x or later and then to 17.12.x.

17.3.4c or later

Upgrade directly to 17.12.x.

Upgrade directly to 17.12.x.

17.4.x

Upgrade first to 17.6.x and then to 17.12.x.

Upgrade first to 17.6.x and then to 17.12.x.

17.5.x

Upgrade first to 17.6.x and then to 17.12.x.

Upgrade first to 17.6.x and then to 17.12.x.

17.6.x

Upgrade directly to 17.12.x.

Upgrade directly to 17.12.x.

17.7.x

Upgrade directly to 17.12.x.

Upgrade directly to 17.12.x.

17.8.x

Upgrade directly to 17.12.x.

Upgrade directly to 17.12.x.

17.9.x

Upgrade directly to 17.12.x.

Upgrade directly to 17.12.x.

17.10.x

Upgrade directly to 17.12.x.

Upgrade directly to 17.12.x.

17.11.x

Upgrade directly to 17.12.x.

Upgrade directly to 17.12.x.

Upgrading the Controller Software

This section covers the various aspects of upgrading the controller software.


Note

Before converting from CAPWAP to embedded wireless controller (EWC), ensure that you upgrade the corresponding AP with the CAPWAP image in Cisco AireOS Release 8.10.105.0. If this upgrade is not performed, the conversion will fail.

Finding the Software Version

The following table lists the Cisco IOS XE 17.12.x software for Cisco Embedded Wireless Controller on Catalyst Access Points.

Choose the appropriate AP software based on the following:

  • Cisco Embedded Wireless Controller on Catalyst Access Points software to be used for converting the AP from an unified wireless network CAPWAP lightweight AP to a Cisco Embedded Wireless Controller on Catalyst Access Points -capable AP (primary AP).

  • AP software image bundle to be used either for upgrading the Cisco Embedded Wireless Controller on Catalyst Access Points software on the primary AP or for updating the software on the subordinate APs or both.

Prior to ordering Cisco APs, see the corresponding ordering guide for your Catalyst or Aironet AP.

Table 9. Cisco Embedded Wireless Controller on Catalyst Access Points Software

Primary AP

AP Software for Conversion from CAPWAP to Cisco EWC

AP Software Image Bundle for Upgrade

AP Software in the Bundle

Cisco Catalyst 9115 Series

C9800-AP-universalk9.17.12.06.zip

C9800-AP-universalk9.17.12.05.zip

C9800-AP-universalk9.17.12.04.zip

C9800-AP-universalk9.17.12.03.zip

C9800-AP-universalk9.17.12.02.zip

C9800-AP-universalk9.17.12.01.zip

C9800-AP-universalk9.17.12.06.zip

C9800-AP-universalk9.17.12.05.zip

C9800-AP-universalk9.17.12.04.zip

C9800-AP-universalk9.17.12.03.zip

C9800-AP-universalk9.17.12.02.zip

C9800-AP-universalk9.17.12.01.zip

ap1g7

Cisco Catalyst 9117 Series

C9800-AP-universalk9.17.12.06.zip

C9800-AP-universalk9.17.12.05.zip

C9800-AP-universalk9.17.12.04.zip

C9800-AP-universalk9.17.12.03.zip

C9800-AP-universalk9.17.12.02.zip

C9800-AP-universalk9.17.12.01.zip

C9800-AP-universalk9.17.12.06.zip

C9800-AP-universalk9.17.12.05.zip

C9800-AP-universalk9.17.12.04.zip

C9800-AP-universalk9.17.12.03.zip

C9800-AP-universalk9.17.12.02.zip

C9800-AP-universalk9.17.12.01.zip

ap1g6

Cisco Catalyst 9120 Series

C9800-AP-universalk9.17.12.06.zip

C9800-AP-universalk9.17.12.05.zip

C9800-AP-universalk9.17.12.04.zip

C9800-AP-universalk9.17.12.03.zip

C9800-AP-universalk9.17.12.02.zip

C9800-AP-universalk9.17.12.01.zip

C9800-AP-universalk9.17.12.06.zip

C9800-AP-universalk9.17.12.05.zip

C9800-AP-universalk9.17.12.04.zip

C9800-AP-universalk9.17.12.03.zip

C9800-AP-universalk9.17.12.02.zip

C9800-AP-universalk9.17.12.01.zip

ap1g7

Cisco Catalyst 9124AXE/I/D

C9800-AP-universalk9.17.12.06.zip

C9800-AP-universalk9.17.12.05.zip

C9800-AP-universalk9.17.12.04.zip

C9800-AP-universalk9.17.12.03.zip

C9800-AP-universalk9.17.12.02.zip

C9800-AP-universalk9.17.12.01.zip

C9800-AP-universalk9.17.12.06.zip

C9800-AP-universalk9.17.12.05.zip

C9800-AP-universalk9.17.12.04.zip

C9800-AP-universalk9.17.12.03.zip

C9800-AP-universalk9.17.12.02.zip

C9800-AP-universalk9.17.12.01.zip

ap1g6a

Cisco Catalyst 9130

C9800-AP-universalk9.17.12.06.zip

C9800-AP-universalk9.17.12.05.zip

C9800-AP-universalk9.17.12.04.zip

C9800-AP-universalk9.17.12.03.zip

C9800-AP-universalk9.17.12.02.zip

C9800-AP-universalk9.17.12.01.zip

C9800-AP-universalk9.17.12.06.zip

C9800-AP-universalk9.17.12.05.zip

C9800-AP-universalk9.17.12.04.zip

C9800-AP-universalk9.17.12.03.zip

C9800-AP-universalk9.17.12.02.zip

C9800-AP-universalk9.17.12.01.zip

ap1g6a

Supported Access Point Channels and Maximum Power Settings

Supported access point channels and maximum power settings on Cisco APs are compliant with the regulatory specifications of channels, maximum power levels, and antenna gains of every country in which the access points are sold. For more information about the supported access point transmission values in Cisco IOS XE software releases, see the Detailed Channels and Maximum Power Settings document at https://www.cisco.com/c/en/us/support/ios-nx-os-software/ios-xe-17/products-technical-reference-list.html.

For information about Cisco Wireless software releases that support specific Cisco AP modules, see the "Software Release Support for Specific Access Point Modules" section in the Cisco Wireless Solutions Software Compatibility Matrix document.

Guidelines and Restrictions

Internet Group Management Protocol (IGMP)v3 is not supported on Cisco Aironet Wave 2 APs.

Embedded Wireless Controller SNMP configuration is supported in Cisco Catalyst Center.

High memory usage on AP running Embedded Wireless Controller. Enabling crash kernel on the AP consumes additional memory on the AP. Hence, if crash kernel is enabled, the overall memory usage of the device will increase and will impact the scale numbers. On Cisco Catalyst 9130 Access Points, the memory consumption is a high of 128 MB.

During the EWC HA pair selection, after a power outage, the standby AP fails to come up in the new EWC HA pair. Another EWC capable AP becomes the standby AP and fails to come up as well. To avoid this situation, ensure that the same IP address is enforced on the active or standby APs during HA pair selection.

Interoperability with Clients

This section describes the interoperability of the controller software with client devices.

The following table describes the configurations used for testing client devices.

Table 10. Test Configuration for Interoperability

Hardware or Software Parameter

Hardware or Software Type

Release

Cisco IOS XE Dublin 17.12.x

Access Points

  • Cisco Aironet Series Access Points

    • 1540

    • 1560

    • 1815i

    • 1815w

    • 1830

    • 1840

    • 1850

    • 2800

    • 3800

    • 4800

  • Cisco Catalyst 9115AX Access Points

  • Cisco Catalyst 9117AX Access Points

  • Cisco Catalyst 9120AX Access Points

  • Cisco Catalyst 9124AXE/I/D Access Points

  • Cisco Catalyst 9130AX Access Points

Radio

  • 802.11ax

  • 802.11ac

  • 802.11a

  • 802.11g

  • 802.11n (2.4 GHz or 5 GHz)

Security

Open, PSK (WPA2-AES), 802.1X (WPA2-AES) (EAP-FAST, EAP-TLS), WPA3.

Cisco ISE

See Compatibility Matrix.

Types of tests

Connectivity, traffic (ICMP), and roaming between two APs

The following table lists the client types on which the tests were conducted. Client types included laptops, hand-held devices, phones, and printers.

Table 11. Client Types

Client Type and Name

Driver / Software Version

Wi-Fi 6 Devices (Mobile Phone and Laptop)
Apple iPhone 11 iOS 14.1

Apple iPhone SE 2020

 iOS 14.1
Dell Intel AX1650w Windows 10 ( 21.90.2.1)
DELL LATITUDE 5491 (Intel AX200) Windows 10 Pro (21.40.2)
Samsung S20 Android 10
Samsung S10 (SM-G973U1) Android 9.0 (One UI 1.1)
Samsung S10e (SM-G970U1) Android 9.0 (One UI 1.1)
Samsung Galaxy S10+ Android 9.0

Samsung Galaxy Fold 2

 Android 10

Samsung Galaxy Flip Z

 Android 10

Samsung Note 20

 Android 10

Laptops
Acer Aspire E 15 E5-573-3870 (Qualcomm Atheros QCA9377) Windows 10 Pro (12.0.0.832)
Apple Macbook Air 11 inch OS Sierra 10.12.6
Apple Macbook Air 13 inch OS Catalina 10.15.4
Apple Macbook Air 13 inch OS High Sierra 10.13.4
Macbook Pro Retina OS Mojave 10.14.3
Macbook Pro Retina 13 inch early 2015 OS Mojave 10.14.3

Dell Inspiron 2020 Chromebook

Chrome OS 75.0.3770.129

Google Pixelbook Go

Chrome OS 84.0.4147.136

HP chromebook 11a

Chrome OS 76.0.3809.136

Samsung Chromebook 4+

Chrome OS 77.0.3865.105
DELL Latitude 3480  (Qualcomm DELL wireless 1820) Win 10 Pro (12.0.0.242)
DELL Inspiron 15-7569 (Intel Dual Band Wireless-AC 3165) Windows 10 Home (18.32.0.5)
DELL Latitude E5540 (Intel Dual Band Wireless AC7260) Windows 7 Professional (21.10.1)
DELL XPS 12 v9250 (Intel Dual Band Wireless AC 8260 ) Windows 10 (19.50.1.6)
DELL Latitude 5491 (Intel AX200) Windows 10 Pro (21.40.2)
DELL XPS Latitude12 9250 (Intel Dual Band Wireless AC 8260) Windows 10 Home (21.40.0)

Lenovo Yoga C630 Snapdragon 850 (Qualcomm AC 2x2 Svc)

Windows 10(1.0.10440.0)
Lenovo Thinkpad Yoga 460 (Intel Dual Band Wireless-AC 9260) Windows 10 Pro ( 21.40.0)

Note

 
For clients using Intel wireless cards, we recommend you to update to the latest Intel wireless drivers if advertised SSIDs are not visible.

Tablets
Apple iPad Pro iOS 13.5
Apple iPad Air2 MGLW2LL/A iOS 12.4.1
Apple iPad Mini 4 9.0.1 MK872LL/A iOS 11.4.1
Apple iPad Mini 2 ME279LL/A iOS 12.0
Microsoft Surface Pro 3 – 11ac Qualcomm Atheros QCA61x4A
Microsoft Surface Pro 3 – 11ax Intel AX201 chipset. Driver v21.40.1.3
Microsoft Surface Pro 7 – 11ax Intel Wi-Fi chip (HarrisonPeak AX201) (11ax, WPA3)
Microsoft Surface Pro X – 11ac & WPA3 WCN3998 Wi-Fi Chip (11ac, WPA3)

Mobile Phones
Apple iPhone 5 iOS 12.4.1
Apple iPhone 6s iOS 13.5
Apple iPhone 8 iOS 13.5
Apple iPhone X MQA52LL/A iOS 13.5
Apple iPhone 11 iOS 14.1
Apple iPhone SE MLY12LL/A iOS 11.3
ASCOM SH1 Myco2 Build 2.1
ASCOM SH1 Myco2 Build 4.5
ASCOM Myco 3 v1.2.3 Android 8.1
Drager Delta VG9.0.2
Drager M300.3 VG2.4
Drager M300.4 VG2.4
Drager M540 DG6.0.2 (1.2.6)
Google Pixel 2 Android 10
Google Pixel 3 Android 11

Google Pixel 3a

Android 11
Google Pixel 4 Android 11
Huawei Mate 20 pro Android 9.0
Huawei P20 Pro Android 9.0

Huawei P40

Android 10
LG v40 ThinQ Android 9.0

One Plus 8

Android 10

Oppo Find X2

Android 10

Redmi K20 Pro

Android 10
Samsung Galaxy S7 Andriod 6.0.1
Samsung Galaxy S7 SM - G930F Android 8.0
Samsung Galaxy S8 Android 8.0
Samsung Galaxy S9+ - G965U1 Android 9.0
Samsung Galaxy SM - G950U Android 7.0

Sony Experia 1 ii

Android 10
Sony Experia xz3 Android 9.0

Xiaomi Mi10

Android 10
Spectralink 8744 Android 5.1.1
Spectralink Versity Phones 9540 Android 8.1
Vocera Badges B3000n 4.3.2.5
Vocera Smart Badges V5000 5.0.4.30
Zebra MC40 Android 5.0
Zebra MC40N0 Android Ver: 4.1.1
Zebra MC92N0 Android Ver:  4.4.4
Zebra TC51 Android 7.1.2
Zebra TC52 Android 8.1.0
Zebra TC55 Android 8.1.0
Zebra TC57 Android 8.1.0
Zebra TC70 Android 6.1
Zebra TC75 Android 6.1.1
Printers
Zebra QLn320 Printer LINK OS 6.3
Zebra ZT230 Printer LINK OS 6.3
Zebra ZQ310 Printer LINK OS 6.3
Zebra ZD410 Printer LINK OS 6.3
Zebra ZT410 Printer LINK OS 6.3
Zebra ZQ610 Printer LINK OS 6.3
Zebra ZQ620 Printer LINK OS 6.3

Wireless Module

Intel 11ax 200

 Driver v22.20.0

Intel AC 9260

 Driver v21.40.0

Intel Dual Band Wireless AC 8260

Driver v19.50.1.6

Issues

Issues describe unexpected behavior in Cisco IOS releases. Issues that are listed as Open in a prior release are carried forward to the next release as either Open or Resolved.


Note

All incremental releases will cover fixes from the current release.

Cisco Bug Search Tool

The Cisco Bug Search Tool (BST) allows partners and customers to search for software bugs based on product, release, and keyword, and aggregates key data such as bug details, product, and version. The BST is designed to improve the effectiveness in network risk management and device troubleshooting. The tool has a provision to filter bugs based on credentials to provide external and internal bug views for the search input.

To view the details of a caveat, click the corresponding identifier.

Open Issues for Cisco IOS XE 17.12.6

Identifier

Headline

CSCwo89933

Controller zombie process \"date\" is not killed and exhausts available process ID, which leads to failures of other processes

Open Issues for Cisco IOS XE 17.12.5

Identifier

Headline
CSCwn18885

Cisco Catalyst 9136 APs encounter kernel unresponsiveness silently with the last reload reason 'unknown' [SF 07624324]
CSCwn27877

Cisco Catalyst 9105 AP does not respond to clients on 5GHz CS00012380774
CSCwn36778

Cisco Catalyst 9800-80 controller displays low memory leak potentially in the 'ipv4_addr' field
CSCwn66225

iPhone clients get disconnected following Tx power invalid on beacon frame
CSCwn81268

IOX-APP using USB in RUN state ends up in activated state after switch reload
CSCwn89252

Cisco Catalyst 9120 AP running 17.15.2 does not install Solum IOX APP
CSCwj53257

Catalyst APs report 3600 seconds NOP timer on the last radar detected channel from DCA list
CSCwn31021

Controller fails to represent the correct format of AP Name and VLAN ID in option 82
CSCwn33501

Controller does not relay any output for all the APs connected for the #show ap summary sort name command
CSCwn40321

Cisco Catalyst 9120 AP intermittently handles dynamic BW from iOS devices with 11ax enabled
CSCwn54374

Cisco Catalyst 9136 AP encounters kernel unresponsiveness
CSCwn55534 IP theft is observed on the controller when the client receives a second DHCP offer following DORA

Open Issues for Cisco IOS XE 17.12.4

Identifier

Headline

CSCwh63050

Controller sends IGMP queries without IP address and MAC address on Cisco IOS XE Cupertino 17.9.3

CSCwi42059

AP unable to join controller due to stale entries in Cisco IOS XE Cupertino 17.9.4

CSCwj30587

CAPWAP messaging causes memory leak in WNCd

CSCwj39057

Cisco Catalyst 9130 AP observes traffic loss and delay due to channel utilization and interference

CSCwj42305

Client is unable to connect due to delete reason NACK_IFID_EXISTS

CSCwj80614

Clients are unable to connect due to assignment of IP address that is in use by stale client entry in device-tracking database in FlexConnect local switching

CSCwj89538

Cisco Aironet 2802 Series AP unable to send reassociation and association requests

CSCwj93876

Controller reloads with reason "Critical process wncmgrd fault on rp_0_0 (rc=134)\"

CSCwk05809

CPUHOG traceback messages observed in Cisco IOS XE Dublin 17.12.2

CSCwk07132

FlexConnect local switching client rate-limit pushed by AAA is applied per stream and not per client in Cisco IOS XE Dublin 17.12.3

CSCwk15357

Controller does not send EXR_OP_UPDATE event, which causes false alarms on Cisco Prime Infrastructure

CSCwk17102

Missing M1 packet causes unexpected client disconnect and inability to reconnect with the controller

CSCwk17667

Controller unexpectedly reboots due to high ODM memory consumption

CSCwk21570

Clients on FlexConnect are unable to pass traffic if rate-limiting AVP is missing

CSCwk32111

Controller generates -1 days messages even when registered using Air Gapped licensing

Open Issues for Cisco IOS XE 17.12.3

Identifier

Headline
CSCwj03495

Cisco Aironet 1562 mesh AP cannot join Cisco Catalyst 9124 root AP due to a missing mesh adjacency message.
CSCwj05365

Cisco Catalyst 9115 AP experiences kernel panic crash.
CSCwi99437

Clients are unable to connect to Cisco Aironet 1850 AP FlexConnect Simultaneous Authentication of Equals (SAE) SSID.
CSCwi99296

Cisco Catalyst 9120 AP experiences kernel panic crash.
CSCwi96508

Cisco Wave 2 APs allow Sticky Key Caching (SKC) roam causing client deletion with INVALID_PMKID as the reason.
CSCwi96176

Cisco Catalyst 9130 APs and Cisco Catalyst 9166 APs show High Channel Utilization with one single client connected.
CSCwi95945

No plumbing takes place from Group Temporal Key (GTK) to the driver when GTK rekeys.
CSCwi69696

Cisco Aironet 1815 Series APs experiences random drops in traffic going towards wireless clients.

CSCwi92439

Cisco Catalyst 1815 APs are reporting high channel utilization in the 5-GHz band.
CSCwi40659

Clients in the same remote LAN (RLAN) with different OfficeExtend Access Point (OEAP) cannot communicate between each other.
CSCwi16509

APs disjoin with the "Invalid radio slot id" error and do not rejoin the controller.
CSCwh52553

High mDNS traffic causes Cisco Catalyst 9105 AP to have high utilization and performance issues.

Open Issues for Cisco IOS XE 17.12.2

Identifier

Headline

CSCwf29762

The controller running the mDNS feature crashes due to a NULL check missing in the code.

CSCwf93063

Intel AX210 client connection fails after a few minutes of traffic with Cisco Aironet 1815 Series APs.

CSCwh18613

The encrypted mesh pre-shared key changes each time password encryption aes command is run.

CSCwh20239

The wcpd process restarts on the Cisco Catalyst 9105 AP generating core but with no AP reload.

CSCwh56836

The Cisco Embedded Wireless Controller (EWC) AP crashes and causes constant active failover.

CSCwh58099

After client deletion and COA termination, the controller allows the deleted client to reconnect.

CSCwh59543

Radio FW 1 and CAPWAP crashed during scale longevity test.

CSCwh63050

Controller sends Internet Group Management Protocol (IGMP) queries with non-controller IP address and controller MAC address.

CSCwh67349

Cisco Aironet 3802 Series AP crashes continuously during the capwapd and cleanaird processes.

CSCwh68219

Cisco Catalyst 9100 Series APs are not processing the EAP-TLS server.

CSCwh80060

Cisco Wave 2 APs connected to the controller lose Flex WLAN - VLAN mapping intermittently.

CSCwh92459

Controller crashes due to wncd process fault.
CSCwh88100

Cisco Aironet 3800 Series APs experience kernel panic crash.

CSCwe93421

Cisco Catalyst 9115 APs intermittently stop transmitting multicast traffic downstream.
CSCwh29442

Cisco Catalyst 9800-40 Wireless Controller crashes after ISSU upgrade.
CSCwh46368

Cisco Catalyst 9800-40 Wireless Controller device tracking binds BSSID MAC to wired IP address causing reachability issues.
CSCwh49467

Cisco Catalyst 9130AXI AP leaks multicast traffic to the wrong BSSID.
CSCwh49810

Audit session ID changes after inter-WNCD roaming.
CSCwh62342

AP FlexConnect as an mDNS gateway does not respond correctly when Location Specific Services (LSS) filter is enabled in the 5-GHz band.

CSCwh67342

Cisco Catalyst 9130 APs are not able to join when Controller Based Application Recognition (CBAR) is enabled on the controller.
CSCwh74415

Per client rate limit with FlexConnect local switching APs do not work.
CSCwh75431

Cisco Aironet 1800 Series APs report false channel utilization affecting performance across the 5-GHz band.
CSCwh82580

Cisco Catalyst 9120 Series APs crash when Prime Infrastructure shuts down one of the SSIDs through the Schedule SSID Availability feature.

CSCwh89539

CAPWAP messages are queued for longer than 'x' seconds with client throttling being switched on.
CSCwh49406

Excessive CleanAir syslogs are generated from Cisco Catalyst 9130 Series APs.
CSCwh67285

The controller is unable to get telemetry data due to the unexpected reload and failure of the pubd process.
CSCwh68360

Cisco Catalyst 9120 AP crashes due to kernel panic.
CSCwh63270

Cisco Catalyst 9130AXI APs crash due to radio failure.
CSCwh87903

Cisco Catalyst 9120 APs sending auth_resp failures for specific client MAC addresses.
CSCwh81332

Cisco Catalyst 9130 Series APs experience kernel panic crash.

Open Issues for Cisco IOS XE 17.12.1

For the list of open issues, click here.

Resolved Issues for Cisco IOS XE 17.12.6

Identifier

Headline

CSCwj80614

Clients are unable to connect due to assignment of IP address that is in use by stale client entry in device-tracking database in FlexConnect local switching

CSCwk82116

Sonic: Unable to add/delete VLAN under VLAN page

CSCwm57815

RF group name is empty after assigning AI RF profile to sites

CSCwm67254

Accounting start and stop messages are missing CUI attributes

CSCwm73020

Controller relays unicast DHCP requests

CSCwn36778

Cisco Catalyst 9800-80 controller displays low memory leak potentially in the 'ipv4_addr' field

CSCwn83626

Client is stuck in association while changing WLAN from central switching profile to local profile

CSCwn90360

Controller is unable to start EAP process due to the delay of packet transmission from AP

CSCwn90874

Guest anchor controller shows error message when creating anchor-export-ACK

CSCwn92477

Controller unexpectedly reboots during WNCd process due to assertion failure with invalid BSSID

CSCwn92827

Secondary controller fails with rsync error

CSCwn98574

observing vrf name corrupt, causing client stuck at mobility while roamining and frequent disconncts

CSCwo02178

FT-SAE clients fails to roam between controller in same mobility group due to PMKID mismatch

CSCwo37680

Controller initiates client deletion with code: CO_CLIENT_DELETE_REASON_DOT11_MAX_STA

CSCwo60822

SJC Alpha eWLC always prints AP Image Predownload Successful even when it fails on some APs

CSCwo61286

Audit session ID changes after inter-WNCd roam on Central Web Authentication (CWA) with PSK

CSCwo62157

Controller with CAPWAP enabled display memory leak in tdl_mac_addr object

CSCwo70030

Rogue processing is performed by WNCd even though the \"bssid-neighbor-stats\" configuration is disabled

CSCwo97161

Unable to push a large RPC config via Netconf over SSH

CSCwo97886

Controller display out of order packet issue with fragmented packet when AutoQOS is enabled

CSCwp07189

9800 WLC sending capwap control payload with DHCP_GW_NM payload to local mode APs

CSCwp13687

Cisco Catalyst 9800-CL controller modifies the script generating SSC to avoid issues with RSA key generation impacting AP join

CSCwp20530

Controller does not forward downstream packets to the wireless client after switchover

CSCwp26707

Controller fails to start L2 authentication for 11r clients with vlan-persitent configured in 17.12.5

CSCwp32113

Controller reloads due to kernel unresponsiveness with segmentation fault (11) in process IGMPSN

CSCwp65184

WLC crash after predownload initiated

CSCwp86129

Client connected to local mac-auth PSK or MPSK SSIDs get disconnected and do not remain connected to the controller

CSCwq30202

Frequent channel changes seen on 6GHz

CSCwf36148

Optimising the SISF code wrt to calling CO API to fetch the wireless client config info

CSCwh99327

APSP custom site filter config doesn't reflect in UI

CSCwi66855

Catalyst 9000 - Allow file uploads for files > 1GB

CSCwm09484

WNCD Crash in CiscoSSL Code

CSCwn31021

Controller fails to represent the correct format of AP Name and VLAN ID in option 82

CSCwn33501

Controller connected to the AP does not give any output while executing the #show ap summary sort name command

CSCwn45670

Controller GUI FlexConnect configuration page fails after upgrade to Cisco IOS XE 17.15.1

CSCwn94159

Controller with 6 GHz support AP's radio channel bandwidth changes due to DCA happening frequently

CSCwo19011

Controller observes unexpected SISF reboot with WNCD core

CSCwo20395

Controller's rogue classification rules do not apply configured classifications

CSCwo21938

AFC is using manual geolocation co-ordinates

CSCwo29017

wncmgrd kernel unresponsiveness after issue command \u2018show ap config slots\u2019

CSCwo30925

Cisco Wi-Fi 6 and above APs do not support disabling WMM on radios that support 802.11n/11ac/11ax operation

CSCwo33572

Failed to collect RA tracing logs on Cisco IOS XE Release 17.9.5

CSCwo41248

Controller display wrong message when configuring 2 radios on the same UNII band (100 - 144)

CSCwo52310

Wireless cloud service consumes 100% CPU due to geolocation derivation

CSCwo64967

Mobility tunnel with data-link encryption intermittently disconnects when the fourth octet of the WMI address is 255

CSCwo66748

'cLApAssociatedClientCount' Object isn't working with 17.12.X

CSCwo67294

Controller unexpectedly reloads due to a corrupted value in IGMP Layer 2 Snooping process

CSCwo67413

Controller pushes aWIPS profiles from FQDN-only setup for intrusion detection

CSCwo73753

C9800 not enforcing SGT policies for static/sxp tags on the same L2 network

CSCwo89539

Controller reload unexpectedly when adding \"location civic-location-id\" to multiple interfaces

CSCwo98644

RRM does not update the default channel when using IPv6 only on the controller

CSCwp03988

Controller reloads unexpectedly due to unsuccessful copy of the MAC address

CSCwp06711

Controller overwrites the static AP location based on the Location Tag settings

CSCwp12959

Wireless clients may be excluded after one authentication failure or not excluded as expected

CSCwp16968

Client disconnection issue during fast roaming on WGB 1562 due to MAC address record mismatch

CSCwp20167

Access points- >Country code for \" Philippines \" misspelled as Philipines

CSCwp25552

BSSID-mac dispatched as 00:00:00:00:00:00 for slot 1 WLAN 1

CSCwp25836

Request for rpc support for dual band radio use-cases

CSCwp59171

Users unable to add allowed user on Lobby admin page

CSCwp93598

Memory leak found in the controller process related to handling a specific database string

CSCwq19937

[17.18.1-SST] 9800 Webui Filter Does Not Contain filters does not work

CSCwj32611

AP kernel panic: \"vmap allocation for size 2093056 failed: use vmalloc=< size > to increase size.\"

CSCwk09142

9136 AP radio crash on process Fatal error received from wcss software

CSCwn66225

Non-ROW AP transmits invalid TX power IE in beacons, breaking client connectivity

CSCwn81268

Due to switch reload when AP boots up, IOX-APP is starting before USB is detected

CSCwn88092

Unable to view the events for wireless clients in the Client 360 section of the Event Viewer

CSCwn89252

AP running 17.15.2 not possible to install Solum IOX APP

CSCwn92652

Radio ucode crashes seen in 9105 APs in monitor mode

CSCwo04380

Beacons stuck on Radio 1 on 9162 APs after upgrade to 17.12.4.158

CSCwo58100

9130, and 916x APs on 17.12.x drop the EAP response coming from the AAA server

CSCwo61838

Cisco Catalyst 9120 / 17.12.4 ESW13 encounters kernel unresponsiveness due to OOM process gRPC

CSCwo68312

Cisco Catalyst 9124AXE-E APs identifies antennas wrongly

CSCwo69382

Need to remove Airdrop from the awips signature file on COS APs

CSCwp07242

Cisco Catalyst 9105 AP stops acking frames due to rxstuck

CSCwp59643

COS AP Crash due to Soft lockup and Null pointer dereference in 17.12.4

CSCwp61910

C9130AX - RHL driver bootup failure causes sh crash, which triggers kernel panic

CSCwp62799

C9130AX - RHL bootup failure due to Wbpll handshake failure

CSCwp99685

C9800 WLAN clients stuck in S_AUTHIF_ADD_MOBILE_ACK_WAIT_KM

CSCwq51138

SDA: AP Flooding SSDP Packets on L2-only VLAN with Wireless Pool Enabled

CSCwh80118

Couldnt convert the AP to WGB mode after factory reset to default

CSCwj40021

WLC 9800 AP hostname not displayed completely in out bound syslogs

CSCwj72174

AP2800 connected to same controller is detected as Rogue by other connected AP2800s

CSCwn61711

AP912X: wlc_dpc:506: PSM microcode watchdog fired;

CSCwn91637

9800-80 running 17.12 9136 is working in quad-radio mode and not able to disable it

CSCwn92047

Cisco Catalyst 9105 Access Point controller fails to start after reboot when internal AP is configured as 802.1X supplicant

CSCwn99070

Radio core fails to generate properly causing operational issues

CSCwo08563

SFTP copy not working with IPv6 on COS APs

CSCwo14129

Wave 2 APs experience unresponsiveness due to soft lockup in version 17.12.4 causing system instability

CSCwo16038

Cisco Catalyst 9124 AP workgroup Bridge becomes unreachable connecting to Cisco 2800 Root Access Point when Wi-Fi Multimedia (WMM) is disabled

CSCwo34769

Access Point in FlexConnect mode does not advertise RSNxE in probe response frames

CSCwo37756

Cisco Aironet 1815t AP does not receive an internal DHCP IP address when connected to LAN3

CSCwo43801

AP duplicates DHCP request packets when using FlexConnect mode with Central Switching WLAN

CSCwo53891

Cisco 91xx AP reboots with incorrect reason 'Controller Last Sent: Channel0 Detected'

CSCwo72236

AP prints logs every 30 seconds : \\"RTNETLINK answers: No such file or directory\\"

CSCwo75325

SST:17.12.6: Crash due to radio failures (Beacon Stuck) seen on 1832 or 1852 APs

CSCwo75806

Reassociation Response from AP is delayed for over 200ms on AP WCP component intermittently

CSCwo82821

Cisco Catalyst 9120 Series APs experience kernel panic at txq_hw_fill+0x394

CSCwo89749

 Cisco Catalyst 9105 Series APs reboot due to kernel panic

CSCwo94810

Cisco Wireless 916x Series, 9130 Series, and 917x Series APs reject association from IoT client TI module

CSCwp39841

AP9120 crashed as Kernel panic due to NMI watchdog timeout

CSCwp93242

AP serial number in IOX application

CSCwq17491

Observing randomly ICMP packet drops with 3802 AP and propietary high roaming device

CSCwq19861

IOX app not able to communicate with IOt chip

Resolved Issues for Cisco IOS XE 17.12.5

Identifier

Headline
CSCwk33521

Cisco Catalyst 9124, 913x and 916x AP in Local mode encounters kernel unresponsiveness
CSCwm09148

EWC rogue syslogs are missing
CSCwm30964

EWC does not start on RAP after factory reset
CSCwn09549

Cisco Catalyst 9124 MAP fails to join and intermittently disconnects with Cisco Catalyst 9124 RAP
CSCwk85707

SSH access remains unrestricted for EWC-capable APs connecting to the Cisco Embedded Wireless Controller
CSCwn04950

Cisco Embedded Wireless Controller in the Site Survey mode does not connect with the internal AP

Resolved Issues for Cisco IOS XE 17.12.4

Identifier

Headline

CSCwk05030

Controller observes unresponsiveness due to critical software exception
CSCwj93153

Controller becomes unresponsive during WNCd process

CSCwi99296

Cisco Catalyst 9120 AP encounters kernel unresponsiveness with the PC due to wlc_bmac_suspend_mac_and_wait

CSCwj10697

Cisco Catalyst 9124AX AP experiences image upgrade failure

CSCwj20953

Cisco Catalyst 9130AX APs in FlexConnect mode encounter kernel unresponsiveness

CSCwj42847

Cisco Catalyst 9120 AP encounters kernel unresponsiveness on Power Supply Module (PSM) watchdog CS00012342194

CSCwj49502

Cisco Catalyst 9115 AP becomes unresponsive due to Capwapd process crash

CSCwj55168

Multiple Cisco Catalyst 9130 APs encounter kernel unresponsiveness

CSCwj66429

Cisco Catalyst 9115 AP encounters kernel unresponsiveness

CSCwj97748

Cisco Catalyst 9130 AP encounters kernel unresponsiveness with PC at _raw_spin_locK/LR wlan_objmgr_peer_try_get_ref

CSCwi99566

Cisco Catalyst 9124AXI-E AP becomes unresponsive due to channel 36 not being supported in the Jordan regulatory domain

CSCwj34460

Cisco Catalyst 9120 AP encounters kernel unresponsiveness when PC is at wlc_txhinfo2bandunit

CSCwj48018

Cisco Catalyst 9105 AP encounters kernel unresponsiveness when PC is at wlc_ampdu_dotxstatus+0x5c/0x5cc

CSCwh82872

Cisco Catalyst 9115AXI-S AP association request dropped on the Cisco Catalyst 9800-80 Wireless Controller

CSCwi27380

Media stream feature does not work

CSCwi56780

Mac Authentication Bypass (MAB) is not initiated unless the client device is deauthenticated

CSCwj08367

Cisco Catalyst 9800 Wireless Controller generates system report with crash information, segmentation fault - Process = IGMPSN

CSCwj09698

Cisco Catalyst 9800 Wireless Controller encounters an unexpected reset in wncmgrd with a scaled setup while being managed by the Meraki Dashboard

CSCwj26196

Controller running the IOS XE software encounters an unexpected reset while trying to validate the MAC address with the EWLC_APP_INFRA_ID_MAGIC

CSCwj31356

Cisco Catalyst 9800 Wireless Controller reboots due to Radio Resource Management (RRM) process fault on rp_0_0 (rc=139)

CSCwj42408

Controller posture flow does not work when PMF is optional

CSCwj79545

Controller unexpectedly reboots during WNCd process due to assertation failure with invalid BSSID

CSCwj86938

Memory leak in scale network with telemetry shared user events with Cisco Catalyst Center

CSCwi01382

5-GHz and 2.4-GHz radios remain non-operational down in an AP

CSCwi64010

Controller accepts configuration of a reserved IPv6 multicast address as a mobility IPv6 address

CSCwj15376

Cisco NMSP runs into security protocol issues

CSCwj25110

Controller reports incorrect values during SNMP polling

CSCwj33376

Incorrect selection of APs in load balancing

CSCwj34379

Controller encounters unresponsiveness when accessing crimson database

CSCwj40202

Controller does not send RADIUS accounting messages WLAN with PSK/MAB authentication

CSCwj60910

Controller and PI report observe RRM message mismatch

CSCwj67158

Controller does not send mobile address to AP if the CoA is received when the user is in the ip_learn state

CSCwj69755

Controller WebUI is not updating configuration port parameters

CSCwj72370

Controller uses incorrect username for "show platform" command when logging in GUI

CSCwj76892

Controller configures aggregation scheduler parameter incorrectly, causing low downlink speed

CSCwj77128

URL filter allows only letters as the first character

CSCwj82898

Controller is unable to onboard on Cisco Spaces

CSCwj96620

Syntax errors observed in LWAPP

CSCwj96666

Syntax errors observed in LWAPP client

CSCwk02633

RSA key pair is configured in the TrustPoint configuration when EC keypair is selected while creating a trustpoint on the controller

CSCwk07124

802.1X timeout value is set to 0 by default when configuring RLAN through GUI

Resolved Issues for Cisco IOS XE 17.12.3

Identifier

Headline
CSCvy50798

Cisco Catalyst 9124 Series APs are not displayed in the controller GUI after it is registered.

CSCwh58054

Cisco Embedded Wireless Controller-AP: Users will experience authentication failures when using CCO mode for software upgrades, after April 30, 2024.

CSCwj10697

EWC on Cisco Catalyst 9124 AP image upgrade fails.

Resolved Issues for Cisco IOS XE 17.12.2

Identifier

Headline

CSCwh87343

Cisco IOS XE Software Web UI Privilege Escalation Vulnerability.

For more information, see Security Advisory: cisco-sa-iosxe-webui-privesc-j22SaA4z.

CSCwf60151

The controller experiences a memory leak at the kernel level with the pubd process.
CSCwe11213

Cisco Catalyst 9130 AP crashes due to radio recovery failure.
CSCwf79458

11AX WGB 2.4-GHz radio does not roam when 11r is enabled.
CSCwh20306

Cisco Wave 2 APs: Hyperlocation is broken if aWIPS is enabled.
CSCwf83278

Client traffic fails with N+1 when AP sends CLIENT_DEL_STOP_REASSOC.
CSCwh08532

The DSCP marking on Cisco Wave 2 APs for QoS metal policies is not happening in the slow and fast path.
CSCwh20301

There is no telemetry data sent from the controller to Cisco DNA Center.
CSCwf53520

Kernel panic crash observed on Cisco Aironet 1815 Series AP.
CSCwh42002

Controller crashes with wncd core while processing CAPWAP data.
CSCwh61011

Cisco Catalyst 9120 APs and Cisco Catalyst 9115 APs unexpectedly disjoin from the controller and are not able to establish DTLS connection again.

CSCwf59348

Cisco Catalyst 9105 AP, Cisco Catalyst 9115 AP, and Cisco Catalyst 9120 AP beacons set the maximum transmit power level to 128 dBm in Ireland (Country IE).

CSCwf63818

Kernal panic crash observed on Cisco Aironet 1832 AP.
CSCwf93992

Cisco Aironet 2800 Flex APs do not process EAP-TLS fragmented packets if the delay is more than 50ms.
CSCwf99932

Cisco Catalyst 9120 AP experiences a radio crash.
CSCwh09879

Clients are unable to connect to the Cisco Wave 2 AP FlexConnect after a country code change.
CSCwh20934

Cisco Wave 2 APs reload due to systemd critical process crash.
CSCwh54279

Kernel panic crash observed in Cisco Aironet 1815 OEAP.
CSCwh74663

Cisco Aironet 3800 AP does not send QoS data frames downstream as the RadarDetected flag is set to TRUE.
CSCwh81040

Cisco Catalyst 9120 AP with local mode crashes when Workgroup Bridge (WGB) associates with the SSID profile.
CSCwh54762

Cisco Catalyst 9120 AP crashes due to kernel panic.
CSCwf53331

Kernel panic crash observed in Cisco Catalyst 9124 AP in Bridge mode, after changing channels on the 5-GHz radio.
CSCwh06834

Using special characters in the password while generating trustpoint generates an invalid trustpoint.
CSCwh08625

Kernel panic crash observed in Cisco Catalyst 9120 AP.
CSCwh18759

Cisco Aironet 1815 AP crashed due to low system memory and kernel panic.
CSCwf13804

APs are randomly failing for new client associations. 'No buffer space available' error is reported.
CSCwf52815

Cisco Wave 2 APs to improve PMTU Discovery mechanism to honor the ICMP unreachable MTU value.
CSCwf62051

Cisco Aironet 1815W APs crash due to kernel panic.
CSCwf90014

Issues observed with Cisco Intelligent Capture on IPv6 cluster.
CSCwf44321

Controller does not report Interferers over the NMSP channel to the Cisco Spaces connector.
CSCwf86242

The controller unexpectedly reloads when the CAPWAP window size is set to 0.
CSCwh61007

Controller crashes whenever it provisions multiple APs.
CSCwf29742

Cisco Catalyst 9120 AP: Firmware crashed while running multicast and longevity test.
CSCwh33190

Cisco Catalyst 9115 AP (Local Mode) crashed due to kernel panic.
CSCwf07384

The wired client behind Cisco Catalyst 9105 AP RLAN is not able to pass traffic.
CSCwf68131

Bad blocks monitoring and repair in Cisco Catalyst 9105AXW Series APs.
CSCwf95868

WGB radio 0 TX power decreases by 20dBm while configuring the antenna number in a single band mode.
CSCwf83292

Cisco Catalyst 9130 APs do not send DHCP Offer and ACK OTA to the client.
CSCwf90114

Stale AP entries remain after AP flap during SSO with scale SVI/VRF configuration.
CSCwh76420

Controller crashes while performing ISSU upgrade.
CSCwf81866

Radio 0 WGB configuration is not backed up correctly when doing a TFTP backup of the configuration.
CSCwf65794

Cisco Aironet 1852 AP reloads unexpectedly due to radio failure.
CSCwf78066 Cisco DNA Center displays the "No radios in the selected band" message on the floor maps.
CSCwh29924

Cisco Catalyst 9105/9115/9120 AP WGB: Antenna-A does not function properly if the configuration is an AB-antenna.
CSCwf12301

The wcpd TX retries count is not MSDU based.
CSCwf10839

A large volume of VRRP traffic sent from EWC and the switch port go down due to the storm-control action that is configured.
CSCwe24263

Inconsistent TX power levels advertised in beacons in Cisco Catalyst 9130 APs.
CSCwh30996 The Bluetooth Low Energy (BLE) PDU type in the TX packet for iBeacon in dual mode needs to be changed.
CSCwf91445

Controller pushes the accounting information for PSK Local Auth WLANs.
CSCwf94863

Cisco Catalyst 9115 AP unexpectedly reboots due to kernel panic.
CSCwf64009

Cisco Aironet 1815 AP experiences frequent drops in RLAN-VLAN traffic with looped ports.
CSCwf98534

Global Navigation Satellite System (GNSS) antenna cable length is not taken into account in uncertainty computation.
CSCwh09676

The Wireless Control Protocol (WCP) dmalloc unfree logs are missing and dmalloc files not updated periodically.
CSCwh27366

Cisco Aironet 3800 AP experiences radio firmware crash.
CSCwh27425

Cisco Catalyst 9115AX AP does not forward a part of the CAPWAP data packets to the uplink direction.
CSCwf13107

Radio crash is observed during longevity test in Cisco Catalyst 9105 AP.
CSCwh35072

Cisco Aironet 3800 AP reloads unexpectedly due to FIQ/NMI reset.
CSCwh45418 Cisco Catalyst 9124 AP sends incorrect duplex information through Cisco Discovery Protocol (CDP).
CSCwh50681 New SSID is being broadcasted after the 17.9.3 wireless upgrade.
CSCwf68612

Controller reloads unexpectedly due to segmentation fault in the wncd process.
CSCwf99906

Network Time Protocol (NTP) authentication is removed after reloading.
CSCwh11858

The device unexpectedly reloads when removing an FQDN ACL from the switch.
CSCwf21390

Duplicate Access-Request messages with the CTS client username occurs when more than one RADIUS server is configured.
CSCwf36752

TACACS encryption fails if FQDN is used as the T+ address when it is configured for first time.
CSCwf66661

The controller GUI renders the page slowly while accessing the device type content, leading to WebSocket termination.

Resolved Issues for Cisco IOS XE 17.12.1

For the list of resolved caveats, click here.

Troubleshooting

For the most up-to-date, detailed troubleshooting information, visit the Cisco TAC website at:

https://www.cisco.com/en/US/support/index.html

Go to Product Support and select your product from the list, or enter the name of your product. Look under Troubleshoot and Alerts to find information about the problem that you are experiencing.

Related Documentation

Information about Cisco IOS XE is available at:

https://www.cisco.com/c/en/us/products/ios-nx-os-software/ios-xe/index.html

All the support documentation for Cisco Catalyst 9100 Access Points are available at: https://www.cisco.com/c/en/us/support/wireless/catalyst-9100ax-access-points/tsd-products-support-series-home.html

Cisco Validated Designs documents are available at:

https://www.cisco.com/go/designzone

Cisco Embedded Wireless Controller on Catalyst Access Points

For support information, see the following documents:

Installation guides for Catalyst Access Points are available at:

https://www.cisco.com/c/en/us/support/wireless/catalyst-9100ax-access-points/products-installation-guides-list.html

For all Cisco Wireless Controller software-related documentation, see:

https://www.cisco.com/c/en/us/support/wireless/catalyst-9800-series-wireless-controllers/tsd-products-support-series-home.html

Wireless Products Comparison

Cisco Access Points–Statement of Volatility

The STATEMENT OF VOLATILITY is an engineering document that provides information about the device, the location of its memory components, and the methods for clearing device memory. Refer to the data security policies and practices of your organization and take the necessary steps required to protect your devices or network environment.

The Cisco Aironet and Catalyst AP Statement of Volatility (SoV) documents are available on Cisco Trust Portal at https://trustportal.cisco.com/c/r/ctp/trust-portal.html#/.

You can search by the AP model to view the SoV document.

Cisco Connected Mobile Experiences

Cisco Connected Mobile Experiences Documentation

Cisco Catalyst Center

Cisco Catalyst Center Documentation

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Cisco Bug Search Tool

Cisco Bug Search Tool (BST) is a web-based tool that acts as a gateway to the Cisco bug tracking system that maintains a comprehensive list of defects and vulnerabilities in Cisco products and software. BST provides you with detailed defect information about your products and software.