I wonder if anyone more have seen this strange behaivure:
The AP's seems to work fine.
If you look in the WEB Page or in the CLI all seems fine.
Nearby wireless clients are not associated to the AP, but to other APs that are further away. The client can not get in contact with the affected AP.
Reboot the AP
The biggest issue is that the problem can not be recognized from error management within the AP and you can not see anything unnormal in the AP.
IOS ver 12.3.8JEA
Does anyone know if this cavet is resolved by Cisco in FW 12.3.8JEB
Of my knowlage, this have heappend on 10 of 3000 APs, but it is really affecting wireless industrial solutions. It is hard to discover, so it may have affected even more APs.
Using multiple SSIDs and different encryption methods, both WEP, dynamic WEP and WPA Enterprice.