Troubleshoot reasons for AP gose offline

Last reboot reason

Last reboot reason for the AP:

·     Power on.

·     Hard reboot.

·     Watchdog reboot.

·     Unknown reboot.

·     User soft reboot.

·     Kernel exception soft reboot.

·     Kernel deadloop soft reboot.

·     Auto update soft reboot.

·     Unknown soft reboot.

·     Memory exhausted.

·     Other unknown soft reboot.

Tunnel down reason

CAPWAP tunnel down reason:

·     Failed to create timer.

·     Neighbor dead timer expired.

·     Request wait timer expired.

·     Data check timer expired.

·     Failed to process data channel keep-alive message.

·     Failed to process request.

·     AP was reset.

·     AP was deleted.

·     Failed to come online.

·     Serial number changed.

·     MAC address changed.

·     Number of APs exceeded the limit.

·     Processed join request in Run state.

·     Failed to create AP context.

·     Received failure result code.

·     Failed to retransmit message.

·     Failed to download image file.

·     Image file downloaded successfully.

·     File operation timer expired.

·     Failed to add tunnel.

·     Received WTP tunnel down event from AP.

·     Backup AC closed the backup tunnel.

·     Master and backup tunnel switchover.

·     Failed to inherit configuration.

·     AP authentication failed.

·     Encryption status mismatch.

·     AP was reset due to inconsistent local and reported radio statistics.

·     AP was reset due to inconsistent AP state on APMGR and lib.

·     AP was reset due to inconsistent BSS state on AC and AP.

This field displays N/A if the CAPWAP tunnel did not go down.

Reason

Association failure reason:

·     Failed to create data check timer.

·     Memory is not enough.

·     The AP model doesn't exist.

·     Lack of AP license.

·     MAC address conflict.

·     Failed to add APLB.

·     AP chose another AC.

·     Reached AC max capability.

·     Received join request in Run state.

·     APLB check failed.

·     Rejected AP access in HA smooth.

·     AP authentication failed.

·     Failed to create auto AP.

·     The AP information has already existed.

·     Failed to download AP image file.

·     Timer for waiting change state event request expired.

·     Time for waiting  image data request or configuration request expired.

·     Received failure result code in change state event request.

·     Failed to add tunnel.

·     AP configuration was not found.

·     Inconsistent AP IDs.

·     Failed to send query message.

·     Open image file timer expired.

Tunnel down reason

CAPWAP tunnel down reason:

·     Failed to create data check timer.

·     Neighbor dead timer expired.

·     Request wait timer expired.

·     Data check timer expired.

·     Failed to process data channel keep-alive message.

·     Failed to process request.

·     AP was reset by admin

·     AP was reset by Web.

·     AP was reset from OASIS.

·     WTU went offline because the WT was down.

·     Manual AP was deleted.

·     Failed to come online.

·     Serial ID changed.

·     MAC address changed.

·     Exceeded AC max capability.

·     Processed join request in Run state.

·     Unauthenticated AP tunnel down.

·     Failed to create AP context.

·     Received failure result code in change state event request.

·     Failed to retransmit message.

·     Failed to download image file.

·     Image file downloaded successfully.

·     File operation timer expired.

·     Failed to add tunnel.

·     Received WTP tunnel down event from AP.

·     Backup AC closed the backup tunnel.

·     Master and backup tunnel switchover.

·     Failed to inherit configuration.

·     AP authentication failed.

·     Backup AP upgrade failed.

·     Board is inactive.

·     WT went offline.

·     Lack of AP license.

·     Encryption status mismatch.