August 29th: Apple released a firmware update for its Airport Extreme base station today. This update (located here) fixes and includes the following,

What’s New in this Version
The AirPort Base Station Update 2007-002 includes general fixes and compatibility updates for the following applications:

- AirPort Utility
- AirPort Disk Utility
- AirPort Base Station Agent

AirPort Utility v5.2.1 for Mac OS X 10.4.x or later software supports the AirPort Extreme Base Station with 802.11n, AirPort Extreme Base Station and AirPort Express Base Station.

Either way, I applied the firmware to my 802.11n base station and suddenly my Internet was not working. I began standard testing like attempting to ping my router, gateway and then Comcast’s DNS servers. Everything tested fine. I blew away my router settings and reconfigured everything. Then, began clearing my local DNS cache (ipconfig /flushdns) and that was not working. In an attempt to not revert back to the previous firmware, I reconfigured the Airport’s DHCP settings and moved from a 10.10.x.x network to a 172.x.x.x network.

Finally, I got tired of playing around and reverted back to the old Firmware version. After the base station restarted, I was back in business. Very weird and I guess I’ll be staying at this version for now.