Warzone and MW3 error code 25509: Possible fixes, reasons, and more

Warzone and MW3 error code 25509: Possible fixes, reasons, and more (Image via Activision)
Here's how you can try to resolve Warzone and MW3's error code 25509 (Image via Activision)

Recently, players have been facing an error code 25509 during their matchmaking in Warzone and MW3. The issue disrupts them from joining matches, getting kicked out of games, and facing lags while playing. This can be frustrating, especially during competitive matches or crucial gaming scenarios. This error can result from server outages, network problems, or firewall interference, which gradually demotes the engagement of players in the game.

However, this guide features some solutions for the error code 25509 in Warzone and MW3.

Note: This article is subjective and solely reflects the writer's opinion.


How to fix COD Warzone and MW3 error code 25509

1) Check internet connection

Ensure that your internet connection is stable and working appropriately. Consider restarting your router or modem if necessary. Sometimes, a slow internet connection creates several errors during peak usage times. Such network congestion can disrupt the overall gaming experience.


2) Restart the game

Sometimes, simply restarting the game can resolve the error code 25509 issues. Close the game completely and relaunch it to see if the error is resolved.


3) Restart the PC

If restarting the game doesn’t work, try restarting the PC. This can help refresh the network connections and resolve the error.


4) Update game and system software

Ensure that your game and system software are up to date. Developers often release patches and updates to fix bugs and improve connectivity issues. Update and relaunch the game to see if the error has been resolved.


5) Clear download cache

Clearing your download cache can sometimes resolve network-related issues. To do so, follow these steps:

  • Launch Steam.
  • Click on Steam and select the Settings option.
  • Select Downloads from the left panel.
  • Find Clear Download Cache and click on the Clear Cache option.
  • Select Confirm to clear the cache, and you will be logged out of your Steam account.
  • Log back in and see if the error code 25509 persists.

6) Reinstall the game

Sometimes, certain game files may become corrupted for various reasons, such as interrupted downloads, hardware issues, or software conflicts. Reinstalling the game ensures that all files are replaced with fresh, undamaged copies, which can resolve error code 25509.

These are some of the solutions to fix the issue. If none of the above solutions work, consider contacting Activision Support for further assistance. Provide them with details about the error code and any troubleshooting steps you’ve already taken.


Check out more COD guides here:

Warzone and MW3 "stuck in fetching data loop" error fix || Warzone crashes on startup fix || MW3 multiplayer lobby not connecting fix || MW3 “Error Code DIVER” fix

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Edited by Angad Sharma
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