I have a 14-month old Apple TV that has worked perfectly since I bought it. However, starting about 2 weeks ago, the Apple TV has been unable to join any wireless network that requires encryption. The Apple TV has no problem joining an unencrypted/unsecured network. The Apple TV lost its ability to join encrypted networks within about a week after I upgraded to the 2.1 version of the Apple TV software. My Apple TV has never before had any problems connecting to my wireless router (a Linksys WRTP54G-VR), and nothing has changed about my wireless network's settings in the last 18 months, leaving me very puzzled. After I type in the correct 26 character alphanumeric encryption code after selecting "WEP 40/128-bit ASCII", the Apple TV reports, "There was a problem connecting to the network. There was a problem with your network connection. Check your settings and try again. (-6)" I am 100% positive I am supplying the correct encryption code, as I am very experienced with networking and have 4 other devices that connect perfectly to my wireless router using 128-bit WEP encryption, including my iPhone, iMac, and 2 IBM ThinkPad notebook computers, so this definitely is not a case of my mistyping the 26 character encryption key or getting CaPiTaLiZaTiOn wrong. When I disable encryption on my own router, the Apple TV connects to it with no problem, so signal strength is not an issue. I can also join other unsecured networks with no problem. The problem joining a network only happens when I am trying to use encryption. I have tried EVERYTHING I can think of: 1. I tried restoring the original factory settings. (I could not join the network even using the original 1.0 Apple TV software.) 2. I tried re-upgrading the Apple TV software to 2.1 to no avail. 3. I tried changing the SSID to something different. 4. Instead of selecting "WEP 40/128-bit ASCII" as I have always used on the Apple TV, I tried selecting the "WEP Password" method to no avail. I also tried joining the network by selecting "WEP 40/128-bit Hex" and supplying the Hex version of my WEP password to no avail. 5. I temporarily modified the encryption settings on my router to WEP 64-bit and then tried having the Apple TV join the network using a 64-bit encryption key to no avail. 6. Even though all my other devices accept the router's 128-bit WEP encryption key in lower case, I tried typing the 26 digit encryption key using ALL caps and again in all lower case. 7. I tried multiple soft reboots. 8. I tried multiple hard reboots after disconnecting the power cord from the wall. 9. I tried joining the network while the Apple TV was connected to my TV using HDMI instead of component video, which I have always used on this device. 10. I tried stroking it gently, kissing it, and whispering sweet things to it. I called Apple and tried to purchase Apple Care, but as my 1 year warranty expired 53 days ago, I was ineligible to purchase the extended warranty. The technician was kind enough to suggest rebooting, restoring the factory defaults, and he also suggested that I type a "$" symbol before the Hex password, which unfortunately was a bad suggestion because Apple TV does not permit you to type a "$" symbol when the Hex password option is selected. I am at my wits end. Can someone please help me and make some further suggestions? I have a feeling this may be due to a bug in the 2.1 revision of the software, but I cannot find any confirmation of that fact nor any workaround. I am doubtful my hardware is damaged because it joins unencrypted networks perfectly. Thank you very much in advance for any help you can offer me.