Cable modem is upstairs. Cat 5 is going from cable modem to wired router. Cat 5 is going from wired router to back of the computer that is upstairs. 3rd Cat 5 is going into the wall and down where it comes out at the back of my computer. XBOX 360 is out in the living room. I have a Linksys wireless router, and a Linksys wireless card in my computer(which i'm not using since were using the wired router upstairs). How do i get my XBOX 360 to go online? I could do like a 100ft cat 5 thru the attic and have it come out in the living room as a last resort I guess.