I recently downgraded our WLCs software from 188.8.131.52 to 184.108.40.206 but after that access point is not associated. I have searched some similar issues here but I cannot get the resolution. It seems that the flash of the AP is full and unfortunately I am not able to delete some files as recommended by others.
AP# sh flash:
Directory of flash:/
%Error oepning flash:/ (Invalid argument)
No space information available
-----got this error from show logging----
capwap_image_proc: encounter flash problem, retry here
----cannot issue delete command to remove some files----
% Unrecognized command
When I try to issue the "sh ver" to check the LWAPP image version, it is still showing version 220.127.116.11 and IOS 12.4(21a)JA2 since the AP join was not successful.
Any help would be appreciated.