How to Fix Error Code “EW_320ca” in Monster Hunter Wild?

The error code “EW_320ca” appears in Monster Hunter Wilds when a player tries to join someone’s quest, but instead of connecting successfully, the game drops the connection and displays the error message “A communication error has occurred” along with the code. This indicates that the multiplayer matchmaking or session connection has failed.

Common Causes:

• Mismatched cross-play or search filter settings (platform or language).
• Network instability or temporary server lag.
• Full or outdated lobbies.

Now that you understand what triggers this error, follow the troubleshooting methods below that have successfully resolved the issue for many players.

1. Keep Backing Out and Retrying

Note: Before trying this, create a private lobby to check if you can join. If you can’t, skip this step.

The game caches quest lists, which can quickly become outdated. By backing out and retrying, you force the game to refresh the lobby list, increasing your chances of connecting to a valid session.

2. Change Your Search Criteria

If your search is set to “All Platforms”, the game may try connecting you to lobbies on different systems (PS5, PC, Xbox), leading to mismatches and failed connections. Restrict matchmaking to your platform to ensure synchronization.

1. Go to Post/Join Quest settings.
2. Find Platform Permissions.
3. Set it to your device (Console or PC).
4. Confirm and save.
5. Check if the issue is resolved.

3. Adjust the Language Setting

Language filters can block or misdirect matchmaking. If your language doesn’t align with the host’s, the connection may fail.

• Your Language: Prioritizes compatible lobbies for smoother connections.
• Any Language: Expands the search pool, increasing available sessions.

1. While searching for a quest lobby, set Language to either Your Language or Any Language.
2. Test if the issue is resolved.

4. Change Player Limit

Setting the lobby to a player limit of 1 makes it act like a solo lobby and can cause failed connections. Increasing the limit to 4 ensures proper matchmaking.

1. Go to Alma.
2. Select Post/Join Quest.
3. Open Quest Settings.
4. Find Player Limit.
5. Set it to 4.
6. Confirm and post the quest.
7. Check if the issue is resolved.

5. Reset Network Connection (For PS5)

Cached IP routes or DNS data on your PS5 can become corrupted, preventing stable server communication. Resetting the network clears these issues.

1. Open Settings on your PS5.
2. Go to Network.
3. Choose Set Up Internet Connection.
4. Select your Wi-Fi and press Forget.
5. Reconnect with your Wi-Fi credentials.
6. Test the connection and check if the error persists.