If your network card won’t connect to the Internet on Windows, there are a few steps you can take to try and resolve the issue.
First, check that the network card is properly installed and the necessary drivers are up to date. To do this, open the Device Manager. This tool helps you manage devices connected to your computer. Find the network card in the list of devices, right-click it, and select Update driver. Select Search automatically for updated driver software if made available by Windows Update. If a driver update is available, it will be installed.
Second, check if the connection settings are correct. To do this, go to Network Settings and select Change adapter settings. This will allow you to view your active network connections. Right-click on your connection and choose Properties. Make sure that the box next to Internet Protocol Version 4 (TCP/IPv4) is checked. If not, check it and select ‘OK’ to apply the changes.
Third, it’s possible that an issue with the DNS server could prevent you from connecting to the Internet. To troubleshoot this issue, first try using the Google DNS server instead of the one assigned to you by your service provider. To do this, go to Network Settings, then Change adapter settings. Right-click on your connection, select Properties, and then select Internet Protocol Version 4 (TCP/IPv4). Click Properties again and then enter 8.8.8.8 in the Preferred DNS Server field and 8.8.4.4 in the Alternate DNS Server field. Select ‘OK’ to save the changes.
Fourth, another way to try and solve the issue is to reset the TCP/IP stack to its default configuration. To do this, open the Command Prompt as administrator, type netsh int ip reset, and press enter. Restart your computer after running this command.
Finally, if none of these steps work, it’s possible that your network adapter hardware is faulty. To test this, you will need to use another device, such as a laptop or smartphone, to connect to the same Wi-Fi network. If the other device can connect to the Internet but yours cannot, then the problem is likely with the network adapter hardware. You will need to replace the network card in this case.
All in all, if your network card won’t connect to the Internet on Windows, check that the network card is properly installed and the necessary drivers are up to date. Be sure that the connection settings are correct, before trying to use the Google DNS server instead of the one assigned to you by your service provider. Reset the TCP/IP stack, and if nothing works, it may be time to replace the network card.