I have a wlc 4404 and 1131 LWAPPs distributed in my environment. Currently using WPA/PSK for user authentication. I receive These messages in the controller monitor:
Client Association: Client MAC:00:15:70:a8:88:b6 Base Radio MAC :00:1d:a2:84:9a:80 Slot: 0 User Name:unknown
I use Airwave AMP to monitor the wireless network. All but a few clients are labeled as "unknown".
I was told that it was because the bsnMobileStationUserName was not completed in SNMP.