I have an nVidia 750a motherboard running Windows 7 32-bit - with an onboard gigabit ethernet contoller.
The ethernet contoller seems to have stopped working to some degree --- it wont retrieve an IP address using DHCP or static IP.
ipconfig returns the Windows auto IP address.
I have updated with the latest motherboard drivers - without any difference. I put in a wireless card into my PC and it connecst to my router without any problem and gets an IP address.
I also tried connecting my PC directly to my cable modem and bypassing my router - same problem. I also tried using each of the 4 ports on my router - same problem.
Other devices in my network can connect wirelessly to my router without any problem.
Question is - how do I verify that my motherboard ethernet controller is bad?