How to fix Dev Error 356 in MW2

Error code incoming.

Call of Duty Modern Warfare 2 released in October 2022 and brings explosive gameplay and photo-realistic graphics to the series. With a popular launch and numerous players logging in, some issues have appeared, including the Dev Error 356. This may leave you wondering how to fix the Dev Error 356 in Call of Duty Modern Warfare 2.

Recommended Videos

How to fix the Call of Duty Modern Warfare 2 Dev Error 356

Unfortunately, there is no real way to fix this on your end. The Dev Error 356 issue seems to be related to the developer's side of things, meaning you will need to wait for Infinity Ward and Activision to fix this error. This will likely be done in a patch or update.

Related: How to finish ‘Alone’ without firing a gun – MW2 Campaign Guide

In the meantime, there are a few things you can try to fix this issue until the developer remedies it. You should first make sure that your game is up to date, regardless of platform. After that, you can try changing the in-game language from your current one and then returning to it, as some players have reported success with this method.

Finally, you can try uninstalling and reinstalling Call of Duty Modern Warfare 2, but we recommend this as a last resort because of the game's size. Ultimately, you will need to wait for the developer to push out an update or patch that fixes the Dev Error 356 in Call of Duty Modern Warfare 2.

For more information on Call of Duty, check out Best MW2 Kastov 545 Loadout – Attachments & Class and Best MW2 Lachmann-762 Loadout – Attachments & Class on Pro Game Guides.

Follow us on Twitter and Facebook to get updates on your favorite games!

About the Author

Justin has been diving into fantasy worlds since he can remember. He is a certified nerd who has a deep love of reading, writing, and hiking. He has been writing since his college days, but specifically in gaming for two years. His favorite games are The Legend of Zelda, Pokémon, Hollow Knight, Celeste, and Banjo Kazooie.
Find Justin Joy On: Twitter

Write A Comment

How to fix Dev Error 356 in MW2

Comments are on moderation and will be approved in a timely manner. Please read the following rules before commenting:

  • All comments must be on topic and add something of substance to the post
  • No swearing or inappropriate words
  • No asking or begging for anything free
  • Do not attempt to start a poll in the comments
  • Comments in all CAPS will be removed
  • We reserve the right to remove a comment for any reason
  • Do not impersonate a staff member or influencer

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.