Symptom
AP is broadcasting but client association fails on 5G radio
Conditions
Extremely corner scenario where 1800/1540 APs with only DFS channels and all channels are put in NOL due to radar detection and the radio is brought down. When one of the channels becomes available channel set fails causing driver and wcp out of sync
Workaround
reset the radio or reboot AP
Further Problem Description
Extremely corner scenario where 1800/1500 APs with only DFS channels and all channels are put in NOL due to radar detection and the radio is brought down. When one of the channels becomes available channel set fails causing driver and wcp out of sync. AP/Controller would show AP is operation on one of the DFS channels but AP could be in fact operating on a non-DFS channel which is not part of the DCA list.