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Cisco Aironet 1200 Series

Field Notice:*Expired* - FN - 62473 - Access Points Disconnect After 120 Hours with Security Processing Failed


Revised August 29, 2007

July 14, 2006

NOTICE:

THIS FIELD NOTICE HAS BEEN ARCHIVED AND IS NO LONGER MAINTAINED OR UPDATED BY CISCO.

THIS FIELD NOTICE IS PROVIDED ON AN "AS IS" BASIS AND DOES NOT IMPLY ANY KIND OF GUARANTEE, WARRANTY OR SUPPORT. USE OF THE INFORMATION ON THIS FIELD NOTICE OR MATERIALS LINKED FROM THIS FIELD NOTICE IS AT YOUR OWN RISK. CISCO RESERVES THE RIGHT TO CHANGE OR UPDATE THIS FIELD NOTICE AT ANY TIME.


Products Affected

Products Affected

ACCESS POINT - AIR-AP1121B-A-K9?

ACCESS POINT - AIR-AP1121G-A-5PK?

ACCESS POINT - AIR-AP1121G-A-K9?

ACCESS POINT - AIR-AP1121G-A-K9-5?

ACCESS POINT - AIR-AP1121G-E-5PK?

ACCESS POINT - AIR-AP1121G-E-K9?

ACCESS POINT - AIR-AP1121G-E-K9-5?

ACCESS POINT - AIR-AP1121G-I-K9?

ACCESS POINT - AIR-AP1121G-J-K9?

ACCESS POINT - AIR-AP1131AG-C-K9?

ACCESS POINT - AIR-AP1131AG-E-K9?

ACCESS POINT - AIR-AP1131AG-I-K9?

ACCESS POINT - AIR-AP1131AG-J-K9?

ACCESS POINT - AIR-AP1131AG-K-K9?

ACCESS POINT - AIR-AP1131AG-N-K9?

ACCESS POINT - AIR-AP1131AG-P-K9?

ACCESS POINT - AIR-AP1131AG-S-K9?

ACCESS POINT - AIR-AP1131AG-T-K9?

ACCESS POINT - AIR-AP1131G-A-K9?

ACCESS POINT - AIR-LAP1121G-A-K9?

ACCESS POINT - AIR-LAP1131AG-A-K9?

ACCESS POINT - AIR-LAP1131AG-C-K9?

ACCESS POINT - AIR-LAP1131AG-E-K9?

ACCESS POINT - AIR-LAP1131AG-I-K9?

ACCESS POINT - AIR-LAP1131AG-J-K9?

ACCESS POINT - AIR-LAP1131AG-K-K9?

ACCESS POINT - AIR-LAP1131AG-N-K9?

ACCESS POINT - AIR-LAP1131AG-P-K9?

ACCESS POINT - AIR-LAP1131AG-S-K9?

ACCESS POINT - AIR-LAP1131AG-T-K9?

AIR1200 - AIR-AP1200?

AIR1200 - AIR-AP1200-F?

AIR1200 - AIR-AP1232AG-*-K9?

AIR1200 - AIR-AP1242AG-*-K9?

AIR1200 - AIR-LAP1232AG-*-K9 ?

AIR1200 - AIR-LAP1242AG-*-K9?

AIR1300 - AIR-LAP1310G-A-K9?

AIR1300 - AIR-LAP1310G-A-K9R?

AIR1300 - AIR-LAP1310G-E-K9?

AIR1300 - AIR-LAP1310G-E-K9R?

AIR1300 - AIR-LAP1310G-J-K9?

AIR1300 - AIR-LAP1310G-J-K9R?

BR1300 - AIR-BR1310G-*-K9 ?

BR1300 - AIR-BR1310G-*-K9-R ?

Problem Description

LWAPP IOS access points may disconnect and reconnect every 120 hours, when controlled by a Wireless LAN Controller running 3.2.150.6 or 4.0.155.0.

Problem Symptoms

The syslog will show message sequences:

spam_crypto.c 653: Failed decryption of message from AP [mac] 
spam_lrad.c 2119: Security processing of Airewave Director Data failed from AP 
[mac] 

or

spam_lrad.c 2250: Security processing of Echo Request failed from AP

These will repeat for 5-7 seconds, after which the AP will disconnect from the WLC. Then some time later, the AP will rejoin:

spam_lrad.c 1115: Processing of Discovery Request failed from AP [mac] 
afp_rogue.c 2709: Can not change state on rogue [mac] 
spam_lrad.c 1809: AP [mac] associated. Last AP failure was due to Link Failure, 
reason: UNKNOWN 

During the time that the AP is disconnected from the WLC, clients will be unable to associate to that AP.

Workaround/Solution

None.

The frequency with which the APs will disconnect is a function of the heartbeat timeout. The default of 30 seconds will cause APs to reboot every 120 hours (5 days).

To configure the heartbeat timeout to 30 seconds:

(Cisco Controller) > config advanced timers ap-heartBeat-timeout 30

To see the current settings:

(Cisco Controller) > show advanced timers

DDTS

To follow the bug ID link below and see detailed bug information, you must be a registered user and you must be logged in.

DDTS

Description

CSCse64027 (registered customers only)

Access points disconnect after 120 hours with security processing failed

Revision History

Revision

Date

Comment

1.0

14-JUL-2006

Initial Public Release

1.1

29-AUG-2007

EXPIRED

For More Information

If you require further assistance, or if you have any further questions regarding this field notice, please contact the Cisco Systems Technical Assistance Center (TAC) by one of the following methods:

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