Welcome to WiFi Voodoo Hell.

I think that you should
not indicate that you are replacing a router [not sure what your other choices are] but I think you need to 'integrate' the AE w/ the 2Wire, so it continues to function as a modem w/ AT&T's network. Conceptually at least, IMO the 2wire is needed as a modem and the AE will take over the routing functions.
Exactly how to do this, I dunno.
Seems to me you could get advice from Apple; you can't be the 1st person to want to use an AE w/ AT&T DSL.
KB
