I just purchased a used AppleTV off craigslist last night. The previous owner said he couldn't connect to wireless but figured it was an issue with his router.. I am having the same issue though. I attempted a factory restore, but it still wouldn't see my wireless router. For the sake of checking that the device could actually connect to the internet I grabbed my WRT54G (running as a wireless bridge via tomato firmware) and hooked it up via ethernet and it worked just fine. I checked to make sure my wireless isn't hidden and it is not and I don't believe interference to be the culprit as I put my WRT next to the appleTV and had no problems getting full signal strength. I have been unable to find anything specifically addressing my issue online or on Apple's website.. is this as uncommon an occurrence as it seems? I saw a guide on pulling the device apart and it appeared the wireless card was removable.. can I just find a replacement airport card and try it, or what are my options at this point as my wireless bridge needs to stay in my workshop so that I can continue to work on non-wireless computers and devices.