LAN does not work

[Terpe]

So i just built a PC with my friend, and now the LAN does not work.

At first it didn't even recognize the Network Hardware. So we assumed it must be the Driver and installed it. (Kind of a torture, since there is no Optical Drive)

Now it says something different. It recognizes the Hardware, but we still can't enter the Internet over LAN.

It is possible to use WLAN (USB Stick), and it even uses the Same Router.

Do you guys have any idea how we could get the lan to work?

[Donut417]

Try disabling the adapter in Device Manager and re enable it. Might even try a reboot of your computer. Ive seen that help. Also try another networking cord. I had a cord that only allowed me to get 10Mbps even though it was able to support 1000Mbps connection. It was caused by a bad cable. Also: Does it show you as connected but you have no internet? Are you issued an IP Address? Does the Address start with 192.168.X.X, or is it a different type of address? I would also try opening the Cmd Prompt. Type in Ping 127.0.0.1. This pings the internal network card. Maybe its just defective, if you get any loss packets then its a bad adapter.