-What model AP is this?
-What version of SW?
-Any chance that you are connecting to a downlink port (E1,E2,E3,E4) rather than the uplink port (E0). If you were connecting to a downlink port this is expected behavior as an IAP with multiple ports has a higher VC priority and if connected to a downlink port the group assumes the IAP with the downlink port connected is the gateway.
-Can you get the console output from this AP when powering up? Do you see anything interesting like the following:
OOPS. someone else thinks hes the master too
I am MASTER. recv-ed a master normal-beacon.
(00:01:50) !!! Win the master election
Sorry....................more questions than answers .