Symptom

Wireless dot1x authentication is failing do to: Authc failure from Dot1X, Auth event server dead Reason: CO_CLIENT_DELETE_REASON_AAA_SERVER_UNAVAILABLE, aaa servers show UP but WNCD down: From "show aaa servers": RADIUS: id 5, priority 5, host , auth-port 1812, acct-port 1813, hostname State: current UP, duration 2134s, previous duration 180s Dead: total time 180s, count 1 Platform State from SMD: current UP, duration 2134s, previous duration 180s SMD Platform Dead: total time 180s, count 1 Platform State from WNCD (1) : current DEAD Platform State from WNCD (2) : current UP Platform State from WNCD (3) : current UP Platform State from WNCD (4) : current DEAD Platform State from WNCD (5) : current DEAD Platform State from WNCD (6) : current UP Platform State from WNCD (7) : current UP Platform State from WNCD (8) : current UP, duration 3244050s, previous duration 20s

Conditions

9800 WLAN with dot1x authentication

Workaround

Move AP to a different site tag/wncd

Further Problem Description