03-27-2024 03:51 AM
Hello Team,
we are using new 9800 wlc in our infra
WLC-9800/ios-17.9.4a
AP-Mode:Flex-connect
AAA server-ise
All of sudden all clients from one particular not able to connect to wireless -corporate ssid.
Clients struck in 802.1x state and error is
2024/03/27 03:20:25.621904275 {wncd_x_R0-0}{1}: [client-keymgmt] [17614]: (ERR): MAC: xxxxxxxxxxx Keymgmt: Failed to validate eapol mic. MIC mismatch.
2024/03/27 03:20:25.621909925 {wncd_x_R0-0}{1}: [client-keymgmt] [17614]: (ERR): MAC: xxxxxxxxx
Keymgmt: Failed to validate eapol key m2. 11r MIC validation failed
2. Reason: CO_CLIENT_DELETE_REASON_KEY_MGMT_MIC_VALIDATION, details: , fsm-state transition
Please confirm what needs to be checked on device end?
Regards,
Anjana
03-27-2024 04:24 AM
03-27-2024 04:57 AM
we are running 3.2 ise version and bug is 3.1 version
03-27-2024 05:45 AM
- Also https://bst.cloudapps.cisco.com/bugsearch/bug/CSCvs38655 , if not applicable and or following an earlier bug report mentioned , then you need to report back to TAC ,
M.
04-02-2024 12:36 PM
Sorry I make you waiting
Can you check PSK ypu use in both wlc and wifi host' this log can indicate mismatch key
MHM
04-23-2024 11:45 PM
No Issues MHM..
Actually we have upgrade the ios to 17.9.5 which resolved the issue.
Regards,
Anjana
04-24-2024 12:17 AM
Thanks alot for update me
Have a nice day
MHM
04-25-2024 09:55 AM
Is there a work around to this? I have this issue with a flex connect site as well, and I cannot update this controller yet, and It will take a while to get an approval to upgrade.
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