Anyone encounter this error on the Cisco NAC Web Agent before (see attached)? I am setting up Cisco NAC Aplliance in Out-Of-Band Virtual Gateway mode for Unified Wireless deployment using the WLC. Appreciate if anyone can help to advise what could be the cause of the error. Thanks in advance.
That means the CAM hasn't received an SNMP trap for that MAC address. Double-check that the WLC is set up to send traps to the CAM: http://www.cisco.com/en/US/docs/security/nac/appliance/configuration_guide/47/cam/m_woob.html#wp1290626
You can see if the CAM's received a trap for a specific MAC by looking under OOB Management > Devices > Discovered Clients.