Fix Baldur’s Gate 3 NATPunch Error

Baldur’s Gate 3, the highly anticipated RPG developed by Larian Studios, offers players the chance to explore the magical world of Faerun together through multiplayer mode. However, some players encounter a frustrating hurdle when attempting to join another player’s server via Direct Connection – the NATPunch Error (66).

This error can occur for various reasons, including network configuration issues and firewall restrictions. In this article, we will explore the possible causes of the NATPunch Error (66) and provide detailed troubleshooting steps to help you resolve it and enjoy seamless multiplayer gameplay.

Read: Fix Baldur’s Gate 3 DXGI_ERROR_DEVICE_REMOVED

How to Fix Baldur Gate 3 NATPunch Error

The NATPunch Error (66) is an indication that the game’s network address translation (NAT) traversal process has failed. This process is responsible for establishing connections between players when using Direct Connection in multiplayer mode.

When it fails, players are unable to join each other’s servers, leading to frustration and an inability to play together.

Restart Your Host’s Router

A simple yet often effective solution is to restart the router of the player who is hosting the game. The NATPunch error can sometimes be attributed to temporary network inconsistencies or settings that become misaligned. By performing a router restart, you can refresh the network connection and potentially resolve the error for all players involved.

1. Pause the Game: If you’re currently in-game, pause the session to prevent any disruptions while troubleshooting.
2. Host’s Router Restart: The player hosting the game should power off their router by unplugging it from the power source. Wait for about 10-15 seconds before plugging it back in.
3. Wait for Reconnection: Once the router fully restarts and establishes a connection, relaunch Baldur’s Gate 3 and resume your multiplayer session.

Enable Direct Connection(Recommended)

A Reddit user suggested enabling the direct connection to solve this issue. To enable this, go into settings. There is an option to enable direct connection. Restart the game and Check if the issue is solved.

Check Firewall and Antivirus Settings

Temporarily disable any third-party antivirus or firewall software on both your and your friend’s computers. If the error no longer occurs, you can add exceptions to your security software to allow the game to communicate freely.

Verify Router Settings

• Access your router settings through your web browser by typing the default gateway IP address (usually 192.168.1.1 or 192.168.0.1) in the address bar.
• Enable UPnP (Universal Plug and Play) in your router settings. This feature helps with NAT traversal and can automatically open the necessary ports for the game.
• If UPnP is already enabled, try disabling it and manually forward the required ports (refer to the game’s documentation or support resources for port numbers).

Check NAT Type

• Determine your NAT type on both computers. You can find this information in the game’s network settings or by performing a NAT test online.
• If you or your friend has a strict or moderate NAT type, consider contacting your internet service provider (ISP) to inquire about a public IP address or explore other options to change your NAT type to “open.”

Update Game to Latest Version

• Ensure that both you and your friend are running the latest version of Baldur’s Gate 3. Check for updates through the game launcher or platform (Steam or GOG).

GOG Lobbies Visibility

If you are unable to see lobbies on GOG, ensure that both you and your friend have opted for the same game version and have updated the game to the latest patch.

Try restarting the GOG Galaxy client to refresh the lobby list.

Restart Network Devices

• Power cycle your modem, router, and computer. Turn them off, wait for a few minutes, and then turn them back on.
• This simple step can sometimes resolve connectivity issues by refreshing network settings.

Use VPN 

As a last resort, you can try using a virtual private network (VPN) to connect to your friend’s server. However, please note that using a VPN can introduce latency and may not always be a reliable solution.

Currently only these solutions are available, we advise users to keep checking for updates.

Be patient and methodical in your approach, and don’t hesitate to reach out to the game’s official support channels for further assistance.

Read: Fix Baldur’s Gate 3 Joining Failed: You’re already connected