THIS IS FOR MODEL MA0703LL/A Problem: If for some reason your computer looses a connection with your airport extreme (maybe due to some type of interference, loose internet connection and airport cycles itself..) without either you shutting down your computer or dismounting the drive you will be unable to reconnect to the drive again. A variety of errors will occur when trying to reconnect with the main one being "password, username etc. are invalid" There are 2 solutions that I am aware of to fix this problem once it occurs, one is temporary (works until the airport drops your wireless connection again) and the other one is the current permanent fix. 1- Temporary Fix- unplug the usb drive from the airport extreme and plug it into your Macbook/computer. This will cause the drive to mounted correctly. "Eject" the drive and dismount it. Than re-plug the drive back into the airport extreme. Wait a few seconds and than re-start your computer. The drive will again work and should show up. automatically 2-Permanent fix-Downgrade your firmware/version to 7.1.1. Do this from the manual setup screen in the airport utility. Click on the word "Version," This will cause a pop-up box to show. In the "download version" choose version 7.1.1 and wait for it to install. Once the install is complete and you are back to version 7.1.1, re-start your computer/macbook and the drive should appear automatically. The bad part about all of this is that I spent 2 days - 3 hours on the phone with a so called applecare "specialist" and they could not figure this out. One person told me there was no way to downgrade a firmware version. All 3 people could not think "out of the box" and just wanted to help me with a random dropped internet connection. I really could care less about the random drop internet connection, the problem is that the new firmware version causes you to loose complete access to your drive. So good job to those of you the are smarter than most of the apple support team and figured this out on your own. List if you too are having this problem and already downgraded to version 7.1.1.