I hope this is the right place, but I have a question about my home network. I have background in IT and networking but for the life of me can't figure this one out. Now before people tell me to turn my xfinity modem's wireless off and into bridge mode to use the airport extreme as the router, I have tried this and had similar problems as well as I like being able to see all clients on the network, wired and wireless which I can with xfinity. So my setup is xfinity router, hard wired to airport extreme and an airport express. In airport utility I create a wireless network on both airports with the same SSID, security and password. Everything connects and seems to be good. However, I notice quite frequently that wireless won't see wired and vice versa. My wifi printer doesn't get found, my sonos speakers won't show, and some of the machines don't see each other. When I shut off the airport, EVERYTHING works fantastic, except for the range. Is there something I'm missing here? I REALLY appreciate any help you can provide.