LAP 1142 Reboots

[moorthyk]

Have 1142 LAP AP's installed in each floor,  All AP in One specific Floor are rebooting. After reboot most AP are joining WLC but few are unable to Join WLC. Logs in WLC shows AP has Crashed due to 

"Unexpected exception to CPUvector 2000, PC = 0x49DFE8  , LR = 0x49DFFC : Unexpected exception to CPUvector 2000, PC = 0x49DFE8  , LR = 0x49DFFC"

and

"Last AP disconnect details
- Reason for last AP connection failure.................... Data transfer message received from an unsupported AP

"

Would like to i) debug further for reason of AP reload ii) Reason for AP not joining WLC after reload /crash.

Is there way to collect AP debugs from WLC ? Any suggestion to prevent reloads from happening.

[Saurav Lodh]

This is bug CSCtx92385, No workaround yet

[Leo Laohoo]

This is bug CSCtx92385, No workaround yet

Saurav, 

Whoever created updated the bug needs to review the accuracy of the content.  Under the Details > Product it states AP is a 2700.  Under Details > Known Affected Release it states "7.0(116.0)".  

[Leo Laohoo]

All AP in One specific Floor are rebooting. 

Check the port and uplink configuration of the switch connected to the APs.  Maybe they're in the wrong VLAN and can't get an IP address. 

Is/Are the AP(s) getting a valid IP address prior to crashing?

[moorthyk]

AP's are getting valid IP address and joining WLC, Clients are successfully associated with AP. But at Random time AP Reboots/Crashes.