Following this guide to the end can help you address these problems.
1. Try Connecting Via Direct IP
To troubleshoot, attempt a direct connection to your server using the IP address and port, such as 192.168.10.1:2456
2. Disable Crossplay on Your Valheim Server (Host only)
If you’re hosting on a local or a dedicated server, turning off crossplay may resolve connection issues. Edit your server’s .bat file, remove the “-crossplay” entry, save the modifications, and restart the server. On your next connection attempt, the error should no longer appear.
3. Verify the Integrity of Valheim Game Files
A game server checks if the client’s files match its requirements before allowing access. Failed to connect errors can arise from outdated or missing client files. You can verify and repair the game files through the game launcher, although it might take a while.
4. Allow Valheim Through the Firewall
The Failed to connect issue may also result from the firewall blocking Valheim’s internet access. Allowing the game through your firewall settings can solve this:
5. Restart Your Modem or Router
Restarting your modem or router can resolve temporary errors, assign a new IP address to your device, and optimize the flow of internet traffic, which may improve the connection.
6. Port Forwarding for Valheim
If you’re struggling to connect to a Valheim server, port forwarding may be a viable solution. This technique involves configuring your router to direct the game’s incoming network traffic to your PC:
7. Update Your Router’s Firmware
Outdated firmware in your router can lead to the Failed to connect error. Some security protocols required for game server communications may not be supported by older firmware. Updating can provide your router with these protocols and could help reestablish server connectivity:
