Strange thing happening and I cant seem to find if its a bug or not. There are some AP's overseas configured for Flexconnect and occasionally they drop off the controller. When I check the AP using CDP neigh on the switch it doesnt have an IP. After a power cycle, power inline never, the AP gets an IP and joins up and works fine. This appears to be timed based on the IP lease. Its the only thing I can think that could cause it at this point.