Vista - Cannot connect to internet using Ethernet Cable but can connect with USB cable

Last week i decided to move my computers (2). Internet was working fine before i did this. After I moved them I havent been able to connect except for a usb cable. Both computers are using the Windows Vista home premium 32 bit. Before all of this happened I had 2 computers and an Xbox 360 all connected. I have tried everything I can think of and none of it worked. I have charter cable internet and they were able to get on the internet fine using the ethernet cable. when i go to ipconfig/all it gives me a 169.254.216.245 IP address. I have read several places where people have been having problems with this but all the suggestions for them nothing worked for me! Please help

Do you connect via a modem or a router. Did you try the release/renew options when you were in ipconfig ?
If you use a router check it to see if it's still giving out IP's automatically.