Did you happen to get the latest Comcast Arris Modem/Phone/Router combo?
My cousin along with many others on here are currently dealing with this issue. From what i've read on here and at the comcast forums, There is a problem with the firmware they have added to the modem...so for some reaso, you cant connect to the 360 through
wifi (but for some reasons, other consoles will connect) but you can still use a direct connection with an ethernet cord.
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