I have internet only through AT&T (U-Verse). My signal strength is really poor, even in a 1000 sq ft apartment. I have a 5th gen Airport Extreme that is being delivered today. I just wanted to figure out the best way to set it up. I would like to have all of the wifi go through the AE. I am thinking(hoping) it will be as simple as connecting the AE directly to the U-Verse "gateway" and disabling wifi on the gateway. Is this the case? Thanks!