[Fixed] COD-MW Error 6034 on Xbox One and PC

Many Xbox One and PC gamers reported COD Modern Warfare error 6034. There are many causes—most likely corrupted or unreadable information.

These steps will resolve the problem.

What’s error 6034 Xbox?

The error can be attributed to corrupted or unreadable Call of Duty Modern Warfare and Warzone game data.

Dev error 6034 keeps recurring.

Activision has merged map packs with previous updates. The result is that your search engine will not find the correct map pack, and you’ll get an error 6034.

How do I fix Dev Error 6034?

pexels creative vix 7295 - [Fixed] COD-MW Error 6034 on Xbox One and PC

  1. Navigate your computer’s Call of Duty Modern Warfare folder and Warzone installation folder.
  2. The following files should be deleted from your install directory. This will delete corrupted files.
    • .patch.result in
    • .product
    • vivoxsdk_x64.dll
    • Launcher. DB
    • Modern Warfare Launcher.
  1. Open the Battle.net launcher and use the Scan and Repair tool to replace any missing files with working ones.

How do I fix Xbox Dev error 6034 Modern Warfare?

This issue can be fixed by uninstalling other packs. The 22GB Multiplayer Packs are the cause of error 6034.

How do you fix Dev error 6034 in Modern Warfare?

  1. Launch Call of Duty Modern Warfare
  2. Choose Options before you reach the main menu.
  3. Navigate to the General tab.
  4. Scroll down to choose Game Installs.

Trick 1

All other multiplayer data packs must not be installed except the first (6.0GB). Destroy Warzone Data Pack 1 and 2.

Download the 22GB Multiplayer Combat Pack and the Multiplayer Multiplayer Multiplayer Pack.

Multiplayer will work without errors if you use

Highlight any content you wish to delete.

  • Data pack one is required to access Campaign and Multiplayer.
  • Campaign pack 1 (Xbox One Only). – Requires to Play Campaign
  • Campaign Package 2 Xbox One – Requirements to Play Campaign
  • Multiplayer Package (Xbox One Only). – Requires to play Multiplayer
  • Multiplayer pack two required to play Multiplayer
  • Special Ops – To play Special Ops
  • Special Ops Pack 2 – To play Special Ops
  • Survival kit – To play Special Ops Survival

5. Select Uninstall, then select Confirm.

Trick 1

Don’t use trick 1, even if it worked.

Install the following packs. Watch the video.

Warzone Dev Error 6034 in Multiplayer

Warzone error code 6034 is a common issue for gamers using Xbox One. The message appears, “You have been disconnected from the call of duty servers.” There are many reasons that Call of Duty error 6034 can occur in Warzone. It is most likely related to a network connection.

Dev errors 6034 and 6034, respectively, are experienced by some players when they play on a PC.

goldflake error warzone

rembrandt error warzone


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dev error 6034 ww_mp_m_speed ff

How can you fix Dev Error 634 in Warzone?

These steps will modify your router’s DNS




google DNS



More fixes for dev errors 6034, 6035, 6036 and 5573

Restart your console:

  • Please turn off the console and then turn it back on.

Verify that your game software has been updated:

  • Click here to go to the PlayStation home screen.
  • Highlight the current game and then press the Options button.
  • To install updates, click “Check for Update.”

Clear your PS4 cache:


  1. Press the PlayStation button on your controller.
  2. Select “Turn off PS4”.
  3. Turn off the PlayStation 4’s power supply and wait for 10-20 seconds.
  4. Start with the 4.


  1. Hold the Guide button on your controller, then click Settings. When prompted, select Restart console.

Dev error 6034 will now be fixed for Xbox One and Xbox Series X with future Warzone or COD Modern Warfare updates.

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