I have six access points on my 2960 24ps. The other day four of these went down. These four all get power from the switch, the other two do not (they are still up). Looking at the switch, I am unable to see the access points connected with cdp neighbor. I power cycled the switch, and even replaced it thinking it was a PoE issue, but the same issue persists.
The 3602e access point when rebooted goes through the discovery process but fails to join the 2540 WLC and the LED consistently flashes red and green. I was unable to ping or ssh to the AP so I had to get up on a lift to get it down; consoled in and after a while I see the error message "CAPWAP-3-DHCP_RENEW: Could not discover WLC. Either IP address is not assigned or assigned IP is wrong. Renewing DHCP IP."
Looking at the controller, it does not receive a join request from the AP. The AP has a static IP address as well as the address for the WLC.
Not sure what happened to cause all four APs to drop at the same time, nor how to remediate this error message. This is my first time working with these APs, so any help would be greatly appreciated. Thank you all!
