This is my first post so hi!
I recently upgraded to Windows 7 and it's been working fine for a few days, but since yesterday I can only use the internet when i connect using wireless. My other PC and xbox are not having any trouble (they are wired). The network is showing as unidentified and when I diagnose I get the message "Local Area Connection doesn't have valid IP configuration".
Can anyone help with this? I really hate using wireless.