Spoke with an Apple Rep today about the issues with the current firmware 7.3.1 on the Airport Extreme. My issue, which they haven't reported yet, is when I switch the radio mode from 802.11n (b/g compatible) to 802.11n (5Ghz) and then back to 802.11 (b/g compatible), Airport Extreme doesn't restart and the only way to remedy the situation is by doing a factory reset of the unit by pressing in the reset button while you plug the unit in and start from scratch. You also need to make sure you change the Channel from the Automatic (3) to a higher channel like 9 or 11 in order to have the unit even broadcast it's ID so you can connect. The rep stated that the wireless is having a lot of issues, and they have a lot of people in the Wireless Department now working to fix the issues. She stated that a firmware update to the AEBS is expected to be released very soon. Hope that helps with people that have encountered the same issues, and have a flaky connection with 802.11n (5Ghz).