How To Fix Dev Error 401 in Modern Warfare 2

By Lidia Rozo | 2023-01-26 13:00:52

Learn how to fix Dev Error 401 in Modern Warfare 2 and play the game without any issues.

What is Dev Error 401?

Dev Error 401 is an error code that occurs when playing Call of Duty: Modern Warfare 2. It typically occurs when there is a problem with the game files or graphics settings. The error code generally appears as an error message stating “Dev Error 401” on the game’s loading screen.

How To Fix Dev Error 401 in Modern Warfare 2?

Fortunately, there are a few solutions to this problem. Here are the steps to fix Dev Error 401 in Modern Warfare 2:

1. Verify Integrity of Game Files

The first step to fix Dev Error 401 is to open the Steam client and verify the integrity of the game files. To do this, simply right-click on the game from the Library tab and select “Properties.” From there, select the “Local Files” tab and click on the “Verify Integrity of Game Files” button.

2. Scan and Repair

If verifying the integrity of the game files does not solve the problem, you can try scanning and repairing the game files. To do this, simply open the “Scan and Repair” tab from within the game’s Properties window and click on the “Scan and Repair” button.

3. Check Your FPS Settings

Another solution to Dev Error 401 is to check your FPS settings from custom to unlimited in the in-game settings. This solution may only work for a few players, and the issue may reappear over time, so it cannot guarantee a comfortable gaming experience.

4. Play Private Matches

If none of the above solutions work, you can try playing private matches. Private matches have the added benefit of allowing you to customize the game’s settings, so you can adjust the graphics settings to see if it solves the problem.

5. Adjust Your Graphics Settings

If you are still having trouble with Dev Error 401, you can try adjusting your graphics settings. This can be done by going to the game’s “Graphics” tab in the in-game settings and adjusting the “Custom Frame Rate Limit” to a lower value.

6. Check Your Internet Connection

Lastly, if all else fails, you can try checking your internet connection. A weak or unreliable internet connection can cause Dev Error 401, so try connecting to a different network if possible.

Dev Error 401 is a frustrating error that can prevent you from enjoying Call of Duty: Modern Warfare 2. Fortunately, there are a few solutions to this problem, including verifying the integrity of the game files, scanning and repairing the game files, adjusting your FPS settings from custom to unlimited, playing private matches, adjusting your graphics settings, and checking your internet connection. Hopefully, one of these solutions will work for you and you can get back to playing Modern Warfare 2 without any problems.

Tags: Call of Duty, Battle royale, Warzone tips, Warzone updates, Warzone weapons, Warzone maps, Warzone strategies, Warzone l

Platform(s): Microsoft Windows PC, Xbox One, Playstation 4

Genre(s): Battle royale, first-person shooter

Developer(s): Infinity Ward

Publisher(s): Activision

Release date: March 10, 2020

Mode: Multiplayer

Age rating (PEGI): 18+

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