So, I'm getting a xbox this weekend. I only have a modem with 1 port though. Was wondering if there was any other spot i could plug in the cord(think it's the ethernet cord) to somewhere and be able to get on Live. If I can't can I call my internet provider and ask them to install or give me a router or modem or w.e so I can play xbox live and someone could be on the computer at the same time?