7 Easy Ways to Fix Dev Error 12744 in Modern Warfare 3

A working stable internet connection is a necessity to avoid the error

5 min. read

Updated onOctober 29, 2024

updated onOctober 29, 2024

Share this article

Improve this guide

Read our disclosure page to find out how can you help Windows Report sustain the editorial teamRead more

If you have encountered Dev error 12744 in Call of Duty Modern Warfare 3(MW3), this guide can help! To fix it, exit the multi-player mode & restart your game, then power cycle the console, check for app updates, verify the game files, use the Scan and Repair option, reset your internet connection, or reinstall the game.

The Dev Error 12744 in MW3 is a technical error code that appears when starting different playlists, such as Mosh-pit in multiplayer or split-screen, so ensure you disable the split-screen feature.

How can I fix Dev Error 12744 in MW3?

1. Power cycle your router

In case you are using the console to play this game, try power cycling your console and then try playing it.

Closing all the processes related to the game can help you fix other issues likeDev error 841; read this guide to learn more.

3. Run MW3 as an administrator

4. Repair the game files

Steam

Verifying the game files can also help you fix theMW3 reset rank error; read this guide to learn more about the issue.

Battle.net

5. Clear cache (for console users)

Clearing system cache can also help you fix theMW3 error code 14515; read this guide to learn more about the issue.

6. Display overlays

7. Reinstall the game and game launcher

In conclusion, to fix the Dev Error 12744 in MW3, exit the multiplayer mode, restart the game, and ensure you have a stable internet connection.

Next, check if the game is up to date, then verify the integrity of game files on Steam; if using Battle.net, try using the Scan and Repair option instead to repair the game.

If nothing worked for you, you need to reinstall the game and the game launcher for a fresh start. In case the issue persists, trycontacting Activision supportand explain to them the issue & steps taken for further assistance.

Before you leave, don’t miss our latest guide onDev error 12502and learn how to fix it.

If you have questions or suggestions about the subject, feel free to mention them in the comments section below.

7 Easy Ways to Fix Dev Error 12744 in Modern Warfare 3#

How can I fix Dev Error 12744 in MW3?#

1. Power cycle your router#

2. End all processes related to the game#

3. Run MW3 as an administrator#

4. Repair the game files#

5. Clear cache (for console users)#

6. Display overlays#

7. Reinstall the game and game launcher#