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Win 7 Suddenly "No Internet Access" on wired connection. Tried the common fixes

cam94z28

Member
I just installed a Cooler Master Hyper 212 Plus heat sink on my Athlon II X4 635. The motherboard is a Gigabyte GA-770TA-UD3. Things were going good, until i tried a slight overclock in EasyTune 6. I tried not even a 200mhz overclock (10 or 12mhz on the FSB). After a few minutes the system hung, and self-rebooted. Upon rebooting, windows 7 64 bit logged in just fine, but instead of successfully connecting to the internet, I see the Yellow Triangle in the taskbar, and a "No Internet Access" popup.

The internet connection is, in fact working. Another wired desktop in the house is connecting just fine, as well as my wireless laptop. The router is a Netgear WGR614v6. The computer in question is connected to a basic linksys 4 port router, which connects to my ps3 just fine. If I run ipconfig /all on the desktop, It even identifies the custom dns servers I have specified in the router, and I can load the web interface for the router. I have tried the MS Fix-It which reinstalls the TCP/IP stack, as well as searching the services list for bonjour, or the other item that Apple apparently installs, and none were there.

Seeing how I can load the web interface in a browser, and identify, but not connect to other computers on the network, the network adapter seems to be working. Wondering if it's a driver issue, I even installed the newest Realtek GBE drivers from Gigabyte's web site.

Another interesting thing to note is that in the course of troubleshooting, I found that the port that my PC had been plugged into on the router had become bad. If any cable is inserted, regardless if plugged into a PC, the activity light for the WAN port blinks steady. The onboard activity light on the motherboard does not do this, so I can assume it is only the router. I moved the connector to the same port that my PS3 works on, to insure the router is not the problem. I also tried an older linksys gateway set to router mode, with the same result.

Any ideas how to go about resolving this?
 
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FWIW here is a screenshot of my ipconfig. Maybe I'm missing something...

DNS Servers are not the custom ones i mentioned above because i set them to automatic.

 
I ran into something very similar to this when I had bad memory on my Win7 64-bit box. It seemed like Windows was running fine but it would become unconnected frequently.

I know it is a long shot, but you might want to run the Microsoft Memory Diagnostic tool to see if your memory is good.
 
Try clearing the CMOS per your MB manual. DO NOT merely remove the battery.

It sounds like your OC may have scrambled your BIOS settings.
 
I ran into something very similar to this when I had bad memory on my Win7 64-bit box. It seemed like Windows was running fine but it would become unconnected frequently.

I know it is a long shot, but you might want to run the Microsoft Memory Diagnostic tool to see if your memory is good.
I have Corsair XMS3 memory running at stock settings, but you never know.

EDIT:
Booted from CD, and ran 1 pass. No memory errors.

Try clearing the CMOS per your MB manual. DO NOT merely remove the battery.

It sounds like your OC may have scrambled your BIOS settings.
Thanks, Will give the bios reset a shot. I did check to be sure the nic was still enabled in bios.

I have uploaded a video screen capture showing some of the things mentioned.
http://rapidshare.com/files/386317439/capture_20100512_013825.mpg.html

Only good for 10 downloads let me know if i need to upload again.
 
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