Call Of Duty Modern Warfare 2: How To Fix Dev Error 356

It’s safe to say that Modern Warfare 2 is one of the biggest games released in Call of Duty games. Since its release in beta in September 2022, players have experienced almost all kinds of bugs and bugs in this game. Players experienced all sorts of issues, from game crashes to shader optimization freezes. This is not the case, several players have been complaining about Dev error 356 that messed up their gaming experience while playing Modern Warfare 2. If you are one of those players who are facing this error, then this article is all you need. Check out this guide for steps to fix Dev Error 356 in COD MW2.

How to Fix Dev Error 356 in Modern Warfare 2

First, if this error occurs, then surely something is wrong on the part of the Developer. Some players are suggesting that this issue is caused by changing language packs in MW2. Unfortunately, there is no official fix for this error at the moment. However, this bug is expected to be fully fixed in the next update. Until then, you can try a few alternative ways to fix Dev Error 356 in MW2:

Restore game files

• For those who play on Steam:
  • Launch the Steam client and navigate to the library.
  • After that, right-click COD Modern Warfare 2 and select Properties.
  • In the Local Files section, go to and click Verify Integrity of Game Files.
  • This should fix Dev Error 356 in MW2.
• For those who play Battle.net:
  • Open the Battle.net launcher and select COD Modern Warfare 2.
  • Next, click on the Cog icon next to the Play button.
  • Now click Scan and Repair.

Restart shader optimization

• Open MW2 and go to game settings.
• Later, in the Display section, go to the Restart Shader Optimization option.
• Turn it on so that the game can update and display textures and assets again every time you launch this game.
• This solution was mentioned by several players as it fixed Dev bug 356 in MW2.

Use a VPN

There is a small chance that this problem is caused by an unstable connection to the server. Hence, use VPN, run MW2 and check if it fixes Dev error 356.

Reinstall MW2, fix Dev bug 356.

If nothing works for you, then uninstall and reinstall the game. Also, be sure to change the game directory so that this problem does not reappear from the roots.

This is all you can do to fix Dev Error 356 in Modern Warfare 2. If you found this article helpful, be sure to check out our other Call Of Duty Modern Warfare 2 guides.