We have upgraded our controllers to version 7.6.100. After upgrading, the access points also upgraded their version to 15.2(4)JB3. But, the problem is that after this process the APs do not get IP. It stays on this state:
*Sep 26 03:55:36.334: %CAPWAP-3-DHCP_RENEW: Could not discover WLC using DHCP IP. Renewing DHCP IP.
Not in Bound state.
The DCHP configuration is OK, since it is working in other two controllers we have and that we are not upgrading untill this issue is solved.
If we connect the APs via console and configure a static IP and controller's IP, the AP registers and works fine. But, the access points are located in 20 remote sites, so we would like to avoid going site by site.
Has anyone suffered this issue and knows how to "recover" those access points?
Thank you very mucho for your help!