I have a home network with a new Apple Desktop. I just purchased a new AT&T modem which would allow me to do away with my Airport Extreme. When I took the Extreme off line I could no longer access wiress switches mext to my TVs. When I put the airport back in the loop with the new modem all is well. Any problem with this setup since my modem and airport are both doing the same thing? Clearly I am no Geek.