Nvidia 10/100 lan card won't detect router using vista

March 7, 2013 at 19:16:08
Specs: Windows Vista, wired ethernet not working
Humar is the greatest. Its 2013 and I have been working for 3 hors a night for 10 days trying to get one of my 3 pcs to work with my new router. 2 of them auto installed and worked correctly with the router within minutes of being turned on. The third, a compaq presario from 2008 with an on board Nvidia 10/100 lan connection would not auto detect the router or a direct connection to my other desktop. After trying every sort of roll back and driver reinstall and every recommended ipconfig and pc doctor scan. I finally come across the above post by Humar. Simply uninstall the Nvidia lan using device manager. Shut down the computer. Make sure the ethernet cable is unplugged(my idea). Restart the computer and within about 3 minutes my 10 day nightmare was over. It is simple, elegant and beautiful. Thank you Humar! Below is the original post and Humars reply.

can't connect to the internet via wired ethe
ethernet card
serb3n November 24, 2009 at 21:49:18
Specs: Windows XP, Pentium 4/2gb

can't connect to the internet via a wired
ethernet connection. have a built in lan but
used another ethernat card to check, both
didn't work. I did ping the loop-back address
and got 4 x "reply"

Humar November 26, 2009 at 08:46:36
Reply: #11


I see that your USB connection is wired (ethernet) and as it works, then the LAN connection itself is OK.

Connecting this same cable to the onboard Network card on your PC does not work.

As the onboard connection has an auto-configure address (one that starts with 169.254.*.* ) then there is likely a problem with the setup for the on-board connection.

I suggest uninstalling the on-board network card, and letting XP re-install it. Use device manager, select the on-board network card and select uninstall. Restart XP and let it discover the new hardware.

Try the connection again.

As a separate issue I note that you are connecting direct to the cable modem.

A relatively cheap router will allow you to have more than one PC or laptop connected to the Internet through your cable modem, at the same time. It also provides additional protection through the router's firewall.


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March 7, 2013 at 19:34:24
Check the network adapter properties of the adapter and make sure the tcp/ip setting are both set to obtain an address automatically, and same with dns in the box below. check both versions of tcp/ip, perhaps that machine has a static ip address which needs changed. If that is not the problem you may want to try the winsock repair tool, easily found on a search.

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