We have Xfinity cable and phone and we have a modem and a router from them, then we added an Apple Airport Extreme -- both are in one end of the 1400 square foot basement -- and we have an additional Airport Express in the 1400 square foot upstairs and my office is upstairs and I'm wireless in the other end of the house from where the Airport Extreme is downstairs and I get CRAZY FAST speeds but we also pay Xfinity for crazy fast speeds so I think it also has a lot to do with how much you're getting out of your cable provider in the first place, yes? And then how much it is split (wired) throughout the house, too?