I just bought Apple AE gen 5 from craiglist in Dallas, talked with Apple Support 3 or 4 times and reset for 30 - 60 mins. Went Apple Store today in Dallas for genius app for MacBook Pro and they said it was a hardware issue, I'm self taught tech for a few years and would NOT take that for an answer. Opened the unit up by 5 screws under pad an found the RESET SWITCH BROKEN LOSE FROM CIRCUIT BOARD, shorted out the terminals where the switch was mounted. RESET THE APPLE AIRPORT EXTREME WITHIN 30 SEC. Best $50 dollars I've every spent. DON'T LISTEN TO TECH SUPPORT, EVERYONE SOULD TRY THIS 1ST.