Okay just to start off, I don't know that much about computers at all. So if I don't make any sense, I'm sorry. The problem I have is that I want to connect to xbox live, but I have a mac computer. I tried hooking it up to the modem that is made by Motorola. (I also have Comcast high speed internet) When i tried to connect to xbox live, it said my IP address failed. So i assumed the modem didn't work, so I tried my router with it. I have one of those white, roundish, dome looking mac routers. It still said the same thing when I tried that. Now I'm completely stuck on what i should do. I would also like to know if I would be able to get onto xbox live from 2 floors under where my modem, router and computer are. I have wireless internet, so would I just need a wireless adapter or something? Anyone who can answer my questions would be the biggest help. Thanks.