HI All, we have a Cisco 3750 stack with 5 switches.
It is made up of 2 x 3750 48 non POE (WS-3750-48TS) and 3 x 3750 POE with 4 SFP (WS-3750-48P). One of the POE is the master. We keep getting the error message (from the console) %ILPOWER-3-CONTROLLER_ERR Controller number 1 through 11, accessing failed. The master switch can not then issue power to any POE devices,the other two can continue to offer ILPOWER. I have rebooted the stack and it resolves the issue temporarily. On stack we are running 12.2(25)SEE3(c3750-ipbase-mz-122.25.SEE3.bin). Does anyone have any ideas please. I looked on the internet and the Cisco offering is to issue SHUT and NO SHUT command to the affected infterfaces, but this did not help.