So I have never had anything like this before but my wired connection to my PC stopped working and says that the network it's connected to is unidentified and the connection is local only so I figured it was either the cable, the network card in the PC or the port in the router. To figure out which I got my laptop out and tried to connect it using the same cable as my PC which didn't work but when I tried a different cable or used a different router slot that didn't work either so im at a loss. The wireless on my 360 my laptop and my brothers laptop is all working fine so its just a wired problem, anyone have any insights?

Network is local only could mean you are not connected to the internet or your default gateway is down. Check your cables going into your modem (phone line for dsl and coax for cable) and restart your modem and router.

Some other help tips

http://www.chicagotech.net/vista/unidentifirdnetwork.htm