Originally posted by: Matthias99
You should be able to. Just go into Device Manager and delete the entry for the NIC (say "Yes" when it warns you about removing a system device). When you reboot, it should detect it again and reinstall the drivers (or you can run the Add New Hardware wizard).
Is this a new computer? Did the network *ever* work? If they shipped it to you brand new like this, there could be a hardware problem with the motherboard.