Comprehensive Guide Resolving Dungeon Defenders II 9009 Error Matchmaking

Encountering the Dungeon Defenders 2 9009 Error can be frustrating, but fear not. This guide provides detailed steps to troubleshoot and fix the issue, ensuring a seamless gaming experience.

The detail error message as below:

9009 : Trying to match make while a request is in progress

Fix 1: Restart the Game

Begin with a simple yet effective solution – restart Dungeon Defenders II. Often, a quick restart resolves the 9009 Error.

Fix 2: Check Port Accessibility

Verify port accessibility by visiting portquiz on your Xbox One, PS4, or PC. If unable to reach the website, it signals a connectivity problem that needs attention.

Fix 3: Perform Port Forwarding

For matchmaking errors, execute port forwarding by forwarding the range of 51640-51650 to your Xbox One, PS4, or PC internal IP address. Refer to your router’s manual or seek guidance from your internet service provider for specific instructions.

Fix 4: Ensure Stable Internet Connection

Maintain a stable internet connection and consider using an Ethernet connection for a direct and reliable link. Restart your modem and router to refresh the connection if issues persist.

Fix 5: Adjust Firewall and Antivirus Settings

Firewall and antivirus settings might interfere with the game’s connectivity. Temporarily disable them, grant Dungeon Defenders 2 internet access, and re-enable these security measures after testing.

Fix 6: Verify Game Files

Right-click on Dungeon Defenders 2 in Steam, navigate to “Properties,” go to the “Local Files” tab, and click “Verify Integrity of Game Files.” This ensures that corrupted or missing files are replaced automatically.

Fix 7: Keep the Game Updated

Optimize performance by regularly updating Dungeon Defenders 2. Check for updates through the game launcher or platform, download and install any available updates, and restart the game.

Fix 8: Disable VPN or Proxy Services

If using a VPN or proxy service, temporarily disable it to eliminate potential conflicts causing the error.

Fix 9: Clear Game Cache

In some cases, clearing the game cache helps. Visit the game’s installation folder, delete any cache or temporary files, restart the game, and check for persistent errors.

Fix 10: Reinstall Dungeon Defenders 2

If all else fails, consider reinstalling Dungeon Defenders 2 to address any underlying installation issues causing persistent errors.

By following these comprehensive steps, you’ll navigate through potential causes of the 9009 Error, ensuring a smooth and error-free Dungeon Defenders II gaming experience.