There is an Xfinitywifi hotspot near my house that I would like to boost the signal with my AirPort Extreme. My current setup is too slow, I'm using a 2008 MacBook Pro, logged into the comcast xfinity wifi, and shared the internet through Ethernet to my AirPort Extreme. It works perfect, but the internet sharing in Mac OS X is very slow (as expected). I also have an Apple TV that can't connect directly to the xfinity hotspot because you have to log in, so I would like all my devices to be on the same network/router. What can I do to make this work better? **EDIT: Found Solution *** From post below — "I just solved my problem, this is what I did: I went to Best Buy and bought a current-generation Airport Express and "joined" the xfinitywifi network. I took an ethernet cable from the Express to the Extreme and created my own home network. Now I get the full 15 megabits down and 10 megabits up."