I finally got network cable for xbox 360 and I need some help setting it up. ok so Im going to hook it up to my cable modem right? well I can hook the cable up to my xbox but i need help with the hookin it up to the cable modem part. first of all, i need to tell u this, the back of the cable modem there is only one ethernet port and it is being used to hook up the internet for my computer with the wireless router. and i cant hook up the cable to the router because of how far away the router is. any help???