I have a 4 port hub, and i am trying to hook up my gf's computer. When I hook up my both comps to the Hub, mine works but my gf's doesnt. I have road runner internet, and when i tried this before, i was told i had to buy a second ip address. I really dont want to spend this money. What are the steps I should take to connect both comps to the internet, if possible. Not sure if i am missing something with the ip address or something. I was told I might need a router, but I just want to think I can somehow connect these with the hardware I have. Thanks in advance.