Maybe you guys can think of something before I drive 2 hours to a Genius Bar.
My Airport Extreme is being stupid.
I cannot get any connection wirelessly and I was able to connect with a ethernet cable but that doesn't work now either. The unit no longer accepts wireless connections or wants to give out IP addresses.
I have so far,
1. Changed the firmware.
2. Disabled all extra options (security, hiding ssid, etc, etc).
3. Restarted it over and over.
4. Unplugged it for 30 mins.
5. After I lost the DHCP, I tried to log in manually by setting my own IP but no go.