Possible causes:
1. Insufficient license resources.
2. The MAC address and SN of the AP do not match.
Solution:
Cause 1:
(1)" display ap online-fail-record "command to check the cause of the AP login failure.
(2) Run the "display license resource usage" command to check the license resource usage. If the current resource usage reaches the specifications authorized in the license file, new APs cannot go online.
If the number of resources exceeds the authorized value, apply for and load a new license file.
Cause 2:
(1) "display ap online-fail-record"command to check the cause of the AP login failure.
(2) Run the "display wlan wdev ap-information ap-id ap-id" command in the diagnostic view of the AC to check the MAC address and SN of the AP.
If the configured AP information is different from the actual AP information, run the "undo ap ap-id ap-id "command in the WLAN view to delete the AP, and then run the "ap-id ap-id ap-mac mac-address ap-sn ap-sn" command to add an AP again before it goes online.
