Win7 refuses to connect to LAN

[why_wolf]

I have a box that suddenly stopped connecting to the LAN. All other boxes are fine. I've

enabled/disabled the adapter
uninstall/reinstalled the driver both from windows and from Intel directly
done CMD ipconfig release and refresh (says it cant find the adapter)
done a Winsock reset
done a netsh int tcp reset and netsh int ip reset
tried PCI network adapter (no change) but its visible on the network and hardware page
tried a USB to Ethernet adapter (same as above)
connected the box to different cables and plug locations (this box always fails but every other box works just fine on same connection)

when you do an ipconfig /all it gives you nothing. No IP address or recognition that, at this point, 3 NICs are installed. Put in a network IP and DNS settings manually, no change.

At this point I'm not sure what else I can do other than reinstall Windows which is what I'm trying to avoid. Any suggestions would be appreciated.

 

[Unolocogringo]

As simple as it might seem,


You MUST use the network set-up wizard t get them to work.
Manually setting the IP etc does not work.