I bought and installed 2 x Airport Express yesterday and I can already notice the speed difference. I have turned the WiFi off on the ISP provided router (kitchen), bridged one AE to it via the WAN port (right beside it, kitchen) and then extended the other AE (near the front door). However the Airport Utility app provided by Apple is reporting the AE in the kitchen has "excellent" connecticity and the one near the door "good", which is very bizarre because my living room is next to the front door and my office/bedroom is above it. Does anybody know how I can run some diagnostics to work out what's happening? I'm so confused by this, and wondering what AE I'm actually connecting to.