Unanswered Question
Jun 12th, 2009

Dear All,

I have the below error message in my WLC and all uesrs are not able to access the network for 2 minutes

19620 LWAPP-3-MIC_COUNTER: Received MIC countermeasure, WLAN 1, slot 1

Any idea why such error and conuntermeasure taken by WLC

I have this problem too.
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George Stefanick Fri, 06/12/2009 - 04:40

This is the cisco response to your error. Did you error give a AP?

Error Message   %LWAPP-3-MIC_COUNTER: Received MIC countermeasure, WLAN [dec], slot [dec] AP [chars] client [hex]:[hex]:[hex]:[hex]:[hex]:[hex]

Explanation   MIC errors have occurred on the specified AP. Clients may not be able to connect on the specified WLAN.

Recommended Action   Check for attacks in the network.

What security policy are you using? Also try blowing away the WLAN profile and recreating it ...

prasad.gsmc Sat, 06/13/2009 - 18:45


The cisco response just generalize by stating " check for attacks". Can we drill down further ?

Do i Need to recreate the profiles ?


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