I have a 5th generation AirPort Extreme with Apple and Windows products using it (including a windows Nokia phone). For a few years, everything was fine: I had a router and the AirPort Extreme was in bridge mode. Recently, our housing company began to pipe Internet coverage directly into our flat, so I no longer need the router: I just connected the AirPort Extreme into the Ethernet jack. All the Apple products and the windows phone work fine: the problem is with the Windows computers. They can join the network, but cannot connect to the Internet. I was wondering whether the problem might be that I hadn't changed the AirPort Extreme from bridge mode (to be honest, I don't understand what "router mode" is. I'm afraid that I will screw something up if I start changing settings on the AirPort Extreme without knowing what I'm doing. Does anyone have any ideas?