Cisco Catalyst 9800 Series Wireless Controllers
| Overview | Product Overview |
|---|---|
| Product Type | Wireless LAN Controller |
| Status | Available Order |
| Series Release Date | 13-NOV-2018 |
| Diagram | Visio Stencil (29 MB .zip file) |
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Recent Security Notices
- 05-Aug-2026
- 19-May-2026
- 20-Apr-2026
- 20-Jan-2026
- 07-Jan-2026
Document Categories
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Collections
- Cisco Catalyst Wireless Family Licensing
Licensing
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Data Sheets and Product Information
- Cisco Catalyst 9800 Series Wireless Controllers At-a-Glance
- Cisco CW9800L Wireless Controller Platform At-a-Glance
- Connect School and Digitize Learning At-a-Glance
- Enable Enterprise-Class Wi-Fi for Mid-Market Companies with Cisco Catalyst EWC At-a-Glance
- Cisco Embedded Wireless Controller on Catalyst Access Points At-a-Glance
At-a-Glance
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- Cisco Wireless Ordering Guide
- Cisco Catalyst 9800-CL Wireless Controller for Cloud Data sheet
- Cisco Catalyst CW9800M Wireless Controller Data Sheet
- Cisco Catalyst CW9800H1 and CW9800H2 Wireless Controllers Data Sheet
- Cisco CW9800L Wireless Controller Data Sheet
- Cisco Embedded Wireless Controller on Catalyst Access Points Data Sheet
- Cisco Catalyst 9800-L Wireless Controller Data Sheet
- Cisco Catalyst 9800-80 Wireless Controller Data Sheet
- Cisco Catalyst 9800-40 Wireless Controller Data Sheet
Data Sheets
- End-of-Sale and End-of-Life Announcement for the Cisco IOS XE 17.17.x
- End-of-Sale and End-of-Life Announcement for the Cisco IOS XE 17.15.x
- End-of-Sale and End-of-Life Announcement for the Cisco Wireless Licenses
- End-of-Sale and End-of-Life Announcement for the Cisco IOS XE 17.9.x
- End-of-Sale and End-of-Life Announcement for the Cisco IOS XE 17.16.x
- End-of-Sale and End-of-Life Announcement for the Cisco Catalyst C9800-40/-80 Wireless LAN Controller
- End-of-Sale and End-of-Life Announcement for the Cisco IOS XE 17.12.x
- End-of-Sale and End-of-Life Announcement for the Cisco IOS XE 17.14.x
- End-of-Sale and End-of-Life Announcement for the Cisco IOS XE 17.13.x
- End-of-Sale and End-of-Life Announcement for the Cisco IOS XE 17.11.x
- End-of-Sale and End-of-Life Announcement for the Cisco IOS XE 17.10.x
- End-of-Sale and End-of-Life Announcement for the Cisco IOS XE 17.6.x
- End-of-Sale and End-of-Life Announcement for the Cisco IOS XE 17.8.x
- End-of-Sale and End-of-Life Announcement for the Cisco IOS XE 17.7.x
- End-of-Sale and End-of-Life Announcement for the Cisco IOS XE 17.3.x
- End-of-Sale and End-of-Life Announcement for the Cisco IOS XE 17.5.x
- End-of-Sale and End-of-Life Announcement for the Cisco IOS XE 16.12.x
- End-of-Sale and End-of-Life Announcement for the Cisco IOS XE 17.2.x
- End-of-Sale and End-of-Life Announcement for the Cisco 17.1.x Release EoL
End-of-Life and End-of-Sale Notices
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Security Notices
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Applicable to Multiple Models
- Field Notice: FN74383 - Cisco Access Points That Are Running, Or Have Run, Releases 17.12.4, 17.12.5, 17.12.6, or 17.12.6a May Exhaust Flash Space, Preventing Upgrades - Software Upgrade Recommended
- Field Notice: FN74148 - PAK and RTU Licenses Cannot Be Converted to Smart Licenses When Doing Direct (Long-Jump) Upgrades from Cisco IOS XE Software Release 17.3 or Earlier to Release 17.11 or Later - Workaround Provided
- Field Notice: FN72510 - Cisco IOS XE Software: Weak Cryptographic Algorithms Are Not Allowed by Default for IPsec Configuration in Certain Cisco IOS XE Software Releases - Configuration Change Recommended
- Field Notice: FN74109 - Access Point Image Corruption During CAPWAP Upgrade May Result in Boot Failure - Software Upgrade Recommended
- Field Notice: FN74160 - A Limited Subset of Memory Modules in Cisco Catalyst 9800-L Wireless Controllers May Fail Prematurely - Hardware Upgrade Available
- Field Notice: FN72524 - During Software Upgrade/Downgrade, Cisco IOS APs Might Remain in Downloading State After December 4, 2022 Due to Certificate Expiration - Software Upgrade Recommended
- Field Notice: FN72323 - Cisco IOS XE Software: QuoVadis Root CA 2 Decommission Might Affect Smart Licensing, Smart Call Home, and Other Functionality - Software Upgrade Recommended
- Field Notice: FN72578 - Cisco IOS XE - Smart Licensing Using Policy Might Cause High CPU/Memory Usage - Software Upgrade Recommended
- Field Notice: FN74222 - Full or Partial Cisco 9800 Series Wireless Controller Configuration Loss after High-Availability Stateful Switchover Failover - Software Upgrade Recommended
Field Notices
- Cisco IOS XE Software Web-Based Management Interface Denial of Service Vulnerability
- Cisco Access Point Software Intermittent IPv6 Gateway Change Vulnerability
- Cisco Wireless Access Point Software Device Analytics Action Frame Injection Vulnerability
- Cisco Access Point Software Uncontrolled Resource Consumption Vulnerability
- Cisco Unified Industrial Wireless Software for Ultra-Reliable Wireless Backhaul Access Point Command Injection Vulnerability
- Cisco Access Point Software Denial of Service Vulnerability
- Cisco Access Point Software Secure Boot Bypass Vulnerability
- Cisco Aironet Access Point Software Resource Exhaustion Denial of Service Vulnerability
- Cisco Catalyst 9100 Access Points Denial of Service Vulnerability
- Cisco Access Point Software Command Injection Vulnerability
- Cisco Access Point Software Denial of Service Vulnerability
- Cisco Access Point Software Association Request Denial of Service Vulnerability
- Vulnerabilities in Layer 2 Network Security Controls Affecting Cisco Products: September 2022
- Cisco Access Points VLAN Bypass from Native VLAN Vulnerability
- Cisco Catalyst 9100 Series Access Points Association Request Denial of Service Vulnerability
Security Advisories, Responses and Notices
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Release and Compatibility
- Cisco Wireless Solutions Software Compatibility Matrix
- Compatibility Matrix for Legacy Cisco Wireless Solutions
Compatibility Information
- Release Notes for Cisco Catalyst 9800 Series Wireless Controller, Cisco IOS XE Release 17.18.4a
- Release Notes for Cisco Catalyst 9800 Series Wireless Controller, Cisco IOS XE Release 17.15.x
- Release Notes for Cisco Catalyst 9800 Series Wireless Controller, Cisco IOS XE Dublin Release 17.12.x
- Release Notes for Cisco Catalyst 9800 Series Wireless Controller, Cisco IOS XE Cupertino Release 17.9.x
- Release Notes for Cisco Catalyst 9800 Series Wireless Controller, Cisco IOS XE Release 26.1.x
- Release Notes for Cisco Catalyst 9800 Series Wireless Controller, Cisco IOS XE Release 17.18.3
- Release Notes for Cisco Catalyst 9800 Series Wireless Controller, Cisco IOS XE Release 17.18.2
- Release Notes for Cisco Catalyst 9800 Series Wireless Controller, Cisco IOS XE Release 17.18.1
- Release Notes for Cisco Catalyst 9800 Series Wireless Controller, Cisco IOS XE Release 17.17.x
- Release Notes for Cisco Catalyst 9800 Series Wireless Controller, Cisco IOS XE Release 17.16.x
- Release Notes for Cisco Catalyst 9800 Series Wireless Controller, Cisco IOS XE Bengaluru Release 17.6.x
- Release Notes for Cisco Catalyst 9800 Series Wireless Controller, Cisco IOS XE Release 17.14.x
- Release Notes for Cisco Catalyst 9800 Series Wireless Controller, Cisco IOS XE Release 17.13.x
- Release Notes for Cisco Catalyst 9800 Series Wireless Controller, Cisco IOS XE Amsterdam Release 17.3.x
- Release Notes for Cisco Catalyst 9800 Series Wireless Controller, Cisco IOS XE Dublin Release 17.11.x
Release Notes
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Reference
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9800
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Programmability
- Programmability Command Reference, Cisco IOS XE 17.18.x
- Programmability Command Reference, Cisco IOS XE 17.17.x
- Programmability Command Reference, Cisco IOS XE 17.16.x
- Programmability Command Reference, Cisco IOS XE 17.15.x
- Programmability Command Reference, Cisco IOS XE 17.14.x
- Programmability Command Reference, Cisco IOS XE 17.13.x
- Programmability Command Reference, Cisco IOS XE Dublin 17.12.x
- Programmability Command Reference, Cisco IOS XE Dublin 17.11.x
- Programmability Command Reference, Cisco IOS XE Dublin 17.10.x
- Programmability Command Reference, Cisco IOS XE Cupertino 17.9.x
- Programmability Command Reference, Cisco IOS XE Cupertino 17.8.x
- Programmability Command Reference, Cisco IOS XE Cupertino 17.7.x
- Programmability Command Reference, Cisco IOS XE Bengaluru 17.6.x
- Programmability Command Reference, Cisco IOS XE Bengaluru 17.5.x
- Programmability Command Reference, Cisco IOS XE Gibraltar 16.12.x
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Others
- Programmability Command Reference, Cisco IOS XE 26.x.x
Command References
- Understand Certificate and Trustpoint Types on the 9800 WLC
- Cisco Wireless EST On-Prem Deployment Guide
- Cisco Active Testing for Wireless with ThousandEyes On-Prem Deployment Guide
- Cisco Catalyst 9800 Series Configuration Best Practices
- Cisco Wireless MACsec On-Prem Deployment Guide
- Cisco 9800 Wireless Resilient Infrastructure
- Cisco Catalyst Center AI-Enhanced RRM Deployment Guide
- Review and Recommendations for AirSnitch
- URWB on Cisco Wireless Use Case and Country Support
- Easy PSK Deployment Guide
- In-Service Software Upgrade (ISSU)
- Understand the AP Join Process with the Catalyst 9800 WLC
- WPA3 Deployment Guide
- Cisco Catalyst 9800 Wireless Controller for Cloud on Microsoft Azure Deployment Guide
- High Availability SSO Deployment Guide for Cisco Catalyst 9800 Series Wireless Controllers, Cisco IOS XE Bengaluru 17.6 (PDF)
Technical References
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Design
- Impact of Dual Wi-Fi Acceleration on Enterprise Networks
Design Guides
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Install and Upgrade
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Applicable to Multiple Models
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Cisco Catalyst 9800-80 Wireless Controller
- Cisco Catalyst 9800-80 Wireless Controller Hardware Installation Guide
- Instructions for Addressing the Cisco Secure Boot Hardware Tampering Vulnerability on Cisco Catalyst 9800-80 Wireless Controller
- Regulatory Compliance and Safety Information—Cisco Catalyst 9800-80 Wireless Controller (PDF - 4 MB)
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Cisco Catalyst 9800-40 Wireless Controller
- Cisco Catalyst 9800-40 Wireless Controller Hardware Installation Guide
- Instructions for Addressing the Cisco Secure Boot Hardware Tampering Vulnerability on Cisco Catalyst 9800-40 Wireless Controller
- Regulatory Compliance and Safety Information—Cisco Catalyst 9800-40 Wireless Controller (PDF - 4 MB)
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Cisco Catalyst 9800-L Wireless Controller
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Cisco Catalyst CW9800H2 Wireless Controller
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Cisco Catalyst CW9800H1 Wireless Controller
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Cisco Catalyst CW9800M Wireless Controller
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Cisco CW9800L
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Cisco Catalyst 9800 Wireless Controller for Cloud
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Videos
Install and Upgrade Guides
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Cisco Catalyst 9800-80 Wireless Controller
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Cisco Catalyst 9800-L Wireless Controller
- Upgrade Software on Catalyst 9800 with N+1 Rolling AP Upgrade
- Upgrade the Catalyst 9800 WLC Quick Start Guide
- Upgrade Catalyst 9800 WLC HA SSO Using ISSU
- Change Installation Modes on Catalyst 9800 Wireless Controller
- List Cisco IOS XE Wireless Features per Release
- Implement Software-Defined Access for Wireless with DNA
- Migrate from AireOS WLC to Catalyst 9800 with WLANPoller
- Deploy Yang Suite and Test XPath on Catalyst 9800 WLC
- Understand Access Point Image Upgrades for Remote Deployments
- Safely Upgrade Access Points, Avoiding Image Corruption That Causes Boot Loop
- Recover from a Boot Loop Caused by Image Corruption on Wave 2 and 11ax Access Points (CSCvx32806)
Install and Upgrade TechNotes
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Configuration
- Configure Posture on Catalyst 9800 WLC and ISE
- Configure DHCP OPTION 43 for Lightweight Access Points
- Configure Catalyst 9800 WLC Smart Licensing Using Policy with Catalyst Center
- Configure Mobility Topologies on Catalyst 9800 WLCs
- Configure Offline (Air-gapped) Licensing on 9800 WLC
- Configure HA SSO on Catalyst 9800 Quick Start Guide
- Configure 802.1X Authentication on Catalyst 9800 Wireless Controller Series
- Configure EAP-TLS on 9800 WLC with ISE Internal CA
- Configure URWB on the Catalyst 9800 for Point-to-Multipoint Deployment
- Configure URWB on the Catalyst 9800 for Mobility Deployment
- Configure Catalyst 9800 WLC iPSK with ISE
- Configure Enhanced Open SSID with Transition Mode - OWE
- Configure and Verify SGACL on Catalyst 9800 WLC and ISE Server
- Configure QoS Rate Limit on Catalyst 9800 Wireless Controllers
- Understand and Configure AAA Cache for TLS on 9800 WLC
Configuration Examples and TechNotes
- Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide, Cisco IOS XE 17.15.x
- Programmability Configuration Guide, Cisco IOS XE 26.x.x
- Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide, Cisco IOS XE 26.1.x
- Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide, Cisco IOS XE 17.18.x
- Programmability Configuration Guide, Cisco IOS XE 17.18.x
- Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide, Cisco IOS XE 17.17.x
- Programmability Configuration Guide, Cisco IOS XE 17.17.x
- Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide, Cisco IOS XE 17.16.x
- Programmability Configuration Guide, Cisco IOS XE 17.16.x
- Smart Licensing Using Policy for Cisco Wireless Controllers
- Programmability Configuration Guide, Cisco IOS XE 17.15.x
- Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide, Cisco IOS XE 17.14.x
- Programmability Configuration Guide, Cisco IOS XE 17.14.x
- Cisco Catalyst 9800 Series Wireless Controller Software Configuration Guide, Cisco IOS XE 17.13.x
- Programmability Configuration Guide, Cisco IOS XE 17.13.x
Configuration Guides
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Maintain and Operate
- User Guide for Cisco User Defined Network Mobile Application
End-User Guides
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Cisco Catalyst 9800-L Wireless Controller
- Validate Wi-Fi Throughput Testing and Monitoring Guide
- Replace an RMA 9800 WLC in HA SSO with Catalyst Center Integration
- Understand CAPWAP AP PMTU Discovery
- Understand mDNS on Catalyst 9800 Wireless Controller
- Understand AP Join Issues with Regulatory Mismatch and -ROW Domain
- Understand RADIUS MTU and Fragmentation on 9800 WLC
- Configure Advanced gRPC Workflow with Telegraf, InfluxDB and Grafana on Catalyst 9800
- Use Prime Infrastructure to Back Up the WLC Configuration
Maintain and Operate TechNotes
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Troubleshooting
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System Message Guides
- System Message Guide for Cisco IOS XE 26.1.x
- System Message Guide for Cisco IOS XE 17.18.x
- System Message Guide for Cisco IOS XE 17.17.x
- System Message Guide for Cisco IOS XE 17.16.x
- System Message Guide for Cisco IOS XE 17.15.x
- System Message Guide for Cisco IOS XE 17.14.x
- System Message Guide for Cisco IOS XE 17.13.x
- System Message Guide for Cisco IOS XE Dublin 17.12.x
- System Message Guide for Cisco IOS XE Dublin 17.11.x
- System Message Guide for Cisco IOS XE Dublin 17.10.x
- System Message Guide for Cisco IOS XE Cupertino 17.9.x
- System Message Guide for Cisco IOS XE Cupertino 17.8.x
- System Message Guide for Cisco IOS XE Cupertino 17.7.x
- System Message Guide for Cisco IOS XE Bengaluru 17.6.x
- Cisco Catalyst 9800 Series Wireless Controller System Message Guide, Cisco IOS XE Bengaluru 17.5.x (XLSX)
- Cisco Catalyst 9800 Series Wireless Controller System Message Guide, Cisco IOS XE Bengaluru 17.4.x (XLSX)
- Cisco Catalyst 9800 Series Wireless Controller System Message Guide, Cisco IOS XE Amsterdam 17.3.x (XLSX)
- Cisco Catalyst 9800 Series Wireless Controller System Message Guide, Cisco IOS XE Amsterdam 17.2.x (XLSX)
Error and System Messages
- Recover a Catalyst 9800 Controller from ROMMON Mode
Password Recovery
- Troubleshoot SSID Broadcast Issues on Catalyst 9800 Wireless LAN Controllers
- Recommended Cisco IOS XE Releases for Catalyst 9800 Wireless LAN Controllers
- Remediate IOS-XE Security Advisory - Aug 2026 and Related Critical Issues
- Troubleshoot Wireless LAN Controller CPU Load
- Troubleshoot Inaccurate/Unexpected Noise Levels Reported on COS APs
- Troubleshoot Wireless Issues with Catalyst Center
- Troubleshoot Catalyst 9800 Mesh Wifi Issues
- Understand Traffic Flow in Foreign-Anchor Setup between 9800 WLC
- Configure and Troubleshoot Catalyst 9800 Unified Licensing and Smart Licensing with SLUP
- Understand 802.11r/11k/11v Fast Roams on 9800 WLCs
- Troubleshoot Catalyst 9800 Wireless LAN Controllers
- Troubleshoot Multicast on C9800 Wireless LAN Controller
- Understand Vocera Broadcast on WLC 9800
- Cisco Support Assistant Extension User Guide
- Demonstrate Client Profiling on 9800 Wireless LAN Controller
Troubleshooting TechNotes
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Literature
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The latest IOS XE release contains wireless software defects that may prevent clients from connecting to the network. Please refer here for necessary resolution steps.
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Below are the models within the Cisco Catalyst 9800 Series Wireless Controllers.
Unless specified, documentation for the Cisco Catalyst 9800 Series Wireless Controllers is applicable to all models.
- Cisco CW9800L Wireless Controller
- Cisco Catalyst 9800-40 Wireless Controller (EOL)
- Cisco Catalyst 9800-80 Wireless Controller (EOL)
- Cisco Catalyst 9800-L Wireless Controller
- Cisco Catalyst 9800-L-C Wireless Controller
- Cisco Catalyst 9800-L-F Wireless Controller
- Cisco Catalyst CW9800H1 Wireless Controller
- Cisco Catalyst CW9800H2 Wireless Controller
- Cisco Catalyst CW9800M Wireless Controller
