Problem with the Ethernet cable connection.
Problem with the Ethernet cable connection.
Hardware details... motherboard B150M-D3H, GPU GTX 1060, CPU i7 6700, RAM 16GB DDR4, OS Windows 10 Pro. Ethernet cable functions now but displays an unknown network. Swapped cable eliminated the issue; no network card present. Settings remain set to automatic IPv4.
Checked if the LAN drivers were downloaded and installed from your motherboard's support site.
It might be related to your router or other devices sharing the same network. If not, you can disable and re-enable the interface. Consider running the ipconfig /renew command to address a layer 3 issue. Verify driver installation as suggested by Crunchy Dragon. A simple restart of the computer could resolve the problem—sometimes it's just a coincidence. Start with the simplest steps and revisit if nothing works.
Execute the command: ipconfig /all in the command prompt. View the results. It appears DHCP isn't functioning properly on your network. In the ipconfig output, check if your IP address falls within the 169.254.X.X range. If it does, DHCP is likely inactive due to various reasons. Verify your IPv4 gateway setting matches your router's IP address. If it differs, a rogue DHCP server might be present. Have you added a new WiFi access point? Test connectivity by pinging 8.8.8.8. If you receive a response, proceed to check your DNS server. Try pinging google.com. If that fails but direct IP works, configure a static DNS server at your NIC IPv4 settings (e.g., 8.8.8.8). Test your default gateway by pinging it. If that succeeds, confirm the MAC address lookup is accurate using your router or a third-party tool. Let me know your progress and we'll continue.
Your IP address is 169.254.71.102, but the network settings aren't working properly. The 8.8.8.8 server isn't responding, and pinging it fails. Try checking your router configuration, ensuring the DHCP server is active, or resetting your device to factory settings if needed.
If the issue stays with your PC, first verify the DHCP service is active. Open Command Prompt and run `sc query dhcp`. You should see it running with status 4. If not, consider restarting all network settings on Windows and then reset the Winsock service using `netsh winsock reset`.