%DOT11-4-TKIP MIC FAILURE REPORT on cisco AIR-AP1231G-E-K9 running 12.3(8)J

jamesholley · ‎10-31-2008

Any ideas what is causing this particular message in the logs of our AP's.

It only seems to affect the odd user, but always the same user getting kicked off. I have tweaked the countermeasure to stop everybody getting dropped, but the cause of this is gettting frustrating.

Any help gratefully received.

Thanks

James

sadbulali · ‎11-06-2008

Error Message - DOT11-4-TKIP_MIC_FAILURE_REPORT: "Received TKIP Michael MIC failure report from the station %e on the packet (TSC=0x0) encrypted and protected by %s key.

Explanation - The access point received an EAPOL-key from the indicated station notifying the access point that TKIP Michael MIC failed on a packet transmitted by this access point.

jamesholley · ‎11-07-2008

Hi, thanks for your update.

Does that mean that the issue is with the AP or the client. There only seems to be one client in particular that suffers from these TKIP messages.

If it is the client machine that is the issue, how can we resolve it.

Thanks

James