WEP + Radius Mac filter

[imnelsonchan]

I am setup a cisco WLC in ver 4.0

I setup a 40bits static wep key for user to use. it is work till i add the mac address filter. it can work with local mac filter. If I want to use Cisco ACS to auth mac address, the controller also have this message

RADIUS server "IP Address":1645 failed to respond to request (ID 24) for client "MAC Address: / user 'unknown'

Is it have something problem in the WLC, I am following the configure sample to config both of the WLC and ACS.

http://www.cisco.com/en/US/tech/tk722/tk809/technologies_configuration_example09186a008084f13b.shtml

thank you very much

[gmarogi]

"RADIUS server "IP Address":1645 failed to respond to request (ID 24) for client "MAC Address" - Check there is connectivity between WLC and ACS. Also, check whether the username credentials are correctly given.