We recently updated to software release 220.127.116.11. We now have one AP unbale to join. When the AP attempts to join I am getting the following errors:
%CAPWAP-3-ERRORLOG: Go join a capwap controller
%CAPWAP-5-DTLSREQSEND: DTLS connection request sent peer_ip: 10.9.254.251 peer_port: 5246
%CAPWAP-5-CHANGED: CAPWAP changed state to
%CAPWAP-5-DTLSREQSUCC: DTLS connection created sucessfully peer_ip: 10.9.254.251 peer_port: 5246
%CAPWAP-3-ERRORLOG: Failed to get serial number.
%CAPWAP-3-ERRORLOG: WTP Board data: Failed to get serial number.
%CAPWAP-3-ERRORLOG: Join request: Failed to encode WTP Board Data message element.
%CAPWAP-3-ERRORLOG: Failed to encode Join request.
%CAPWAP-3-ERRORLOG: Failed to send Join request to 10.9.254.251
%DTLS-5-SEND_ALERT: Send WARNING : Close notify Alert to 10.9.254.251:5246
All other AP's join successfully. This AP had no problems prior to the update.