Why can''t my friend see my Valheim server after port forwarding?

If your friend cannot see your Valheim server after port forwarding, the issue often lies in incorrect setup, network configuration, or firewall settings. Valheim uses peer-to-peer hosting, which means the server is hosted on your computer, and other players connect to it via your IP address. Port forwarding is essential to allow external connections, but it requires precise configuration to work properly.\n\nFirst, ensure you have correctly forwarded the necessary ports. Valheim uses port 2456-2458 by default, both TCP and UDP. Log into your router''s admin panel (usually accessible via a browser by typing 192.168.1.1 or 192.168.0.1) and navigate to the port forwarding section. Create a new rule for ports 2456-2458, specifying your computer''s local IP address. Save the changes and restart your router to apply them.\n\nNext, check your computer''s firewall settings. Both Windows and third-party firewalls can block incoming connections to Valheim. Open your firewall settings and create an exception for Valheim''s executable file (valheim_server.exe or valheim.exe). Ensure the rule allows both inbound and outbound traffic. If you''re unsure how to do this, search for ''allow an app through Windows Firewall'' in your system settings and follow the prompts.\n\nAnother common issue is using the wrong IP address. When hosting a server, you must provide your public IP address to your friends, not your local one. You can find your public IP by searching ''what is my IP'' in a browser. However, if your ISP uses a dynamic IP, it may change periodically, requiring you to share the new address. Consider using a dynamic DNS service to create a permanent address for your server.\n\nIf port forwarding and firewall settings are correct but your friend still can''t connect, verify that your server is running properly. Launch Valheim, select ''Start Server,'' and ensure the world is loaded. If you''re using a dedicated server, check the server logs for errors. Common issues include missing world files or incorrect launch parameters. For example, if you''re hosting a dedicated server, ensure the command line includes the correct port and world name.\n\nFinally, test your setup by having another friend try to connect or use an online port checker tool to verify that ports 2456-2458 are open. If the ports are closed, double-check your router settings or contact your ISP for assistance. Some ISPs block certain ports or use carrier-grade NAT, which can prevent port forwarding from working.\n\nIn summary, troubleshooting Valheim multiplayer issues involves verifying port forwarding, firewall settings, and server configuration. By following these steps, you can resolve most connectivity problems and ensure your friends can join your Viking adventures. Remember to test your setup thoroughly and consult online resources or Valheim''s community forums for additional support.