no internet with wired ethernet card but wifi is fine

thatpeg

Reputable
Feb 21, 2014
2
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4,510
I have a Gateway desktop running Windows 7 Home Premium 64 bit. Internet browsing seemed to work only intermittently at first, and then not at all.

The machine is plugged into a wired router, and all other machines on the network have fine internet connectivity. The Gateway machine must be connecting to the internet, though, as it downloads Windows updates just fine; it just has no browsing ability. I can't even open my router page using 192.168.0.1. I tried booting into safe mode with networking and still no browsing ability.

On a lark, I installed a USB wireless adapter and disabled my ethernet adapter and now I can browse fine.

Does that definitely point to a bad ethernet adapter? Or is there something else I can try?
 

tclam662

Distinguished
Apr 10, 2007
17
0
18,520


Does that definitely point to a bad ethernet adapter? Maybe, let's try the following:

0. Check the IP address and Gateway of your USB wifi adapter, Following this article, remember to write that down.
1. Unplug your USB wifi adapter
2. Enable your Ethernet adapter and connect to router with lan cable, then open network diagnostics and repair network, follow this article
3. See if you can receive an IP from the router's DHCP. Following this article

If your IP is 169.254.x.x, then you are unable to get a valid ip from router. In this case, try to assign a static IP for that, follow this article, remember the gateway address of USB wifi adapter you written down? For example, if gateway is 192.168.0.1, then you have to set your static ip as 192.168.0.X(X is any number from 2 to 255) , and gateway address as 192.168.0.1. See if that works.

If not, try to uninstall your network card driver completely, follow this article, then reinstall it, also remember to update to the latest version of driver(either visit the vendor or manufacturer's website or use driver management software like driver genius, driver manager....etc), retry from step 2 again.

If you still cant get it to work, you either have a bad network card or there are MAC filtering rules set in your router.
 

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