WLC 2504 upgrade issue

[Jhyman2]

I upgraded 1 WLC 2504 from 7.3.101.0 to 8.0.152.0.  After upgrade the APs will not register.  There are 4 3602i's.  The WLC is licensed for 5.

The AP LED cycles through the boot process and then immediately goes solid green.

[Leo Laohoo · Accepted solution]

FN - 63942 - Wireless Lightweight Access Points and WLAN Controllers Fail to Create CAPWAP Connections Due to Certificate Expiration

[marce1000]

 - Check controller logs when the AP(s) try to join and  post the complete AP boot process.

 M.

[Jhyman2]

It was the expired certificate issue.  Set the date back and all the APs came back up.  Thank you!