Getting wired

I've got a machine with a Gigabyte MB and an onboard NIC. I installed a wireless card and ran wireless for about a month. Now I need to go back to hard wiring it to the router.

My problem is that now the onboard NIC rarely works. All I get out of it is a steady blinking light on the router and a message that it's not getting an IP from the router.

Things I've tried:

1) Disabling wireless and enabling wired and rebooting.

2) Uninstalling wireless card, shut down and physically uninstalling wireless card and rebooting.

3) Install a PCI NIC and disable the onboard NIC. Still just a blinking light on the router.

4) Different ethernet cable

5) Different computer to test the router. The router works.

If anyone has any suggestions I'd appreciate it.

TIA

Have you tried reinstalling the NIC drivers?

SS, no I haven't but the fresh install of the other NIC should have accomplished the same thing.

Edit: I uninstalled and reinstalled with an updated driver. No change in the problem.

Look in Network connections for Bridged.
Deleteing that cleared things up for me.

Train, I don't have anything "bridged" in Network Connections.

This could be a motherboard issue rather than a OS or NIC issue. So I've also tried pulling the CMOS battery to reset to defaults and I've flashed the BIOS due to another issue I had with the CPU fan. Neither action changed the situation of the NIC.

Well, the problem was that both NIC's were dead. The onboard one and my spare.

I bought a new one and it fixed the problem.

:(

Thanks for posting back.