How do I fix the "Failed to connect" error when joining a Valheim multiplayer server?

The ''Failed to connect'' error in Valheim multiplayer can be frustrating, but it is often caused by common issues that can be resolved with a few troubleshooting steps. This error typically occurs when the game client cannot establish a connection to the server, which can be due to network problems, server settings, or game version mismatches. Below, we’ll explore the causes and provide step-by-step solutions to help you get back into the game.\n\nFirst, ensure that both the host and the joining player are using the same version of Valheim. The game frequently receives updates, and if one player is on an older version, they won’t be able to connect. To check your game version, open the Steam client, navigate to your library, and verify that Valheim is up to date. If an update is available, download and install it before attempting to reconnect.\n\nNext, confirm that the server is online and accessible. If you’re joining a dedicated server, check with the server administrator to ensure it’s running. For peer-to-peer multiplayer, the host must have their game running and the world loaded before others can join. The host should also ensure their firewall or antivirus software isn’t blocking Valheim’s connection. Adding Valheim as an exception in your firewall settings can resolve this issue.\n\nIf you’re using a dedicated server, verify that the server’s IP address and port are correctly configured. The default port for Valheim is 2456, but this can be changed in the server settings. Ensure that the port is open and forwarded correctly on the host’s router. You can use online tools like ''CanYouSeeMe.org'' to check if the port is accessible from outside the local network.\n\nAnother common cause of the ''Failed to connect'' error is network latency or instability. If you’re experiencing high ping or packet loss, try connecting to a server closer to your location. For peer-to-peer multiplayer, the host’s internet connection quality directly impacts the experience. If possible, use a wired connection instead of Wi-Fi to reduce latency and improve stability.\n\nIf the issue persists, try restarting both the game and the server. Sometimes, temporary glitches can cause connection problems. Additionally, clearing the game’s cache can help. To do this, navigate to the Valheim installation folder (usually located in Steam\steamapps\common\Valheim) and delete the ''saves'' folder. This will reset your local game data without affecting your world files.\n\nFor players hosting a server, ensure that the server software is configured correctly. If you’re using a third-party hosting service, check their support documentation for troubleshooting steps. Some services require specific settings or updates to work with Valheim. If you’re hosting locally, double-check the server configuration file (start_headless_server.bat) to ensure all parameters are correct.\n\nFinally, if none of the above solutions work, consider reinstalling Valheim. This can resolve issues caused by corrupted game files. Before reinstalling, back up your save files by copying the ''worlds'' folder from the Valheim directory to a safe location. After reinstalling, restore the folder to continue your progress.\n\nIn summary, the ''Failed to connect'' error in Valheim multiplayer is often caused by version mismatches, network issues, or incorrect server settings. By following these steps, you can identify and resolve the problem, ensuring a smooth multiplayer experience. Remember to keep your game updated, check your network settings, and communicate with your server host or fellow players to troubleshoot effectively.