This HAS to be a common problem.. I just moved, and took my AirPort base station and my iBook with me to my new rental house. It doesn't work now. (I bought an old, used D-link wireless, and put it up in my old house, where other guys were living, and it started right up.. the network was called "LAPD"..ha ha!) Anyway, my expensive Apple Airport Extreme, in the new place, won't work at all. All I can figure is that I am using a different internet provider, but it's the same cable w/cable modem I've seen before. Thanks, Apple! Next time, I'll go with the $20 D-link. All I can guess is that there are technical thingies about the ISP and the signal, and the address, but I thought Apple made all that automatic. I don't know the cable company's DHCP or PPPoE, or whatever. They don't tell us these things anymore.. I've re-set it to death, and I've run ethernet through it (doesn't work either), so I've put it aside for now and I'm online, directly thru the cable modem. Will I ever get this Base Station working again? Apple is real short on Troubleshooting questions in their booklet. I've checked all the Airport/Config and SetUp assistant stuff.. unplugged it, reset it, changed the name, changed the password, it's recognized on my laptop as a network, it asks me if I want to join, and then.. I am never "connected", as Safari likes to say. Perhaps this means a call to the local cable provider, so they can say "Huh?" k Lots of people move.. does this happen much?