We have tried to upgrade two Wism from version 18.104.22.168. to 22.214.171.124.
At the first Controller the FTP transfer of the new SW was successful, but at the
second Controller the FTP transfer didn't start.
Following error message appears: âAt least one AP is upgrading image, download cannot startâ
However no AP is associated or is trying to download a image at this controller.
I have also tried to restrict APs for associating to the controller with âAuthorize APs against AAAâ - no effect.
A reboot of the controller is also not possible. - same error message.
Any feedback is welcome.