Windows 7: NVIDIA nForce Network Controller Problem

Any1?

Well I'm just guessing now, but Windows is not setting or keeping you LAN settings because you have 2 LAN controllers, so I would think that the motherboard's driver(s) for the LAN(s) is corrupted or conflicting. You might try uninstalling (removing) the LAN controllers from Device Manager and rebooting to see if the driver package that Pebbly gave you (that you downloaded and installed previously) will reinstall automatically without problems this time. If they don't automatically install then just run the download to install them.

Has anyone found a solution for this? I have the exact same problem...

Hi,
I found exactly same problem on my motherboard ASROCK n68-s3 ucc with AMD Phenom II 810 and 8GB DDR3 RAM as on the 1st post. I have tried even to update the driver from Windows update service, however, it doesn't help. By the way, it's regarding situation, where NIC try to obtain address from DHCP server, if you enter static IP, it works fine. I think that this is relating to driver or nVidia chipset architecture itself, which is relatively old and I can't understand why new motherboards still use it. I can't use static IP in my network enviroment, so I decided to disable onboard LAN and use PCI-E ethernet card, it solves the problem.

I had this same problem for weeks. Tried dozens of fixes, new drivers, bio this and that with not success. Fix is assigning an IP address, subnet, default gateway and DNS server. No problems since.