Many Call of Duty: Modern Warfare 3 players have reported Dev Error 5433, which can arise on Windows PCs and consoles. For example, this is what a player said about that gaming issue on Reddit: “I got a dev error 5433 when trying to go into multiplayer. Restarting the game (Modern Warfare 3) didn’t fix it.” Thus, players can’t play Call of Duty: Modern Warfare 3 multiplayer when this error arises. This is how you can fix the Call of Duty: Modern Warfare 3 Dev Error 5433.
Looking for more Call of Duty: Modern Warfare 3 guides from KeenGamer?
- 5 Ways to Fix the Call of Duty: Modern Warfare 3 Packet Burst Gaming Issue
- 5 Ways to Fix the Call of Duty: Modern Warfare 3 Hueneme Negev Error
- 7 Ways to Fix Call of Duty Modern Warfare 3 Not Working (Starting) on a Windows PC
- Top 5 Best Assault Rifles in Modern Warfare 3 Multiplayer
Check the Server Status for Modern Warfare 3
The Call of Duty: Modern Warfare 3: Dev Error 5433 can sometimes arise because of server outages. To check if a server outage could be causing this gaming issue, open this Activision page and choose Modern Warfare 3 on the Select Game drop-down menu. If that page shows there’s a general server issue, try waiting a day or two before playing Modern Warfare 3 again.
The Activision server status page
Lower the On-Demand Texture Streaming Setting
COD: Modern Warfare 3 players widely confirm lowering the On-Demand Texture Streaming setting can fix Dev Error 5433. This is a universal potential fix you can apply on Windows PC and game consoles by adjusting in-game settings. You can lower the On-Demand Texture Streaming setting like this:
- Start the Call of Duty: Modern Warfare 3 game.
- Bring up the game settings menu.
- Select Graphics to view those settings.
- Next, select the Show more for the On-Demand Texture Streaming setting.
The On-Demand Texture Streaming option
- Lower the Allocated Texture Cache setting to a value of less than 32GB for the PC Modern Warfare 3 game. If you’re a console player, select Small for the Allocated Texture Cache option.
Generally Lower the In-Game Graphical Quality Settings
If lowering the On-Demand Texture Streaming setting doesn’t work for you, try taking things a step further by generally reducing MW3’s in-game graphical settings. To do this, bring up the Quality tab in Call of Duty: Modern Warfare 3 settings. Then, select a Basic or Minimum option that’s lower than the current preset set.
The Graphics Preset option
Verify the Call of Duty: Modern Warfare 3 Files
Game file corruption is another potential cause for the Call of Duty: Modern Warfare 3 Dev Error 5433. Verifying the MW3 game files with the Steam or Battle.net gaming clients is one way you can address this potential cause. Check out these Battle.net help or Steam support page that tell you how players can run verification scans for games in those gaming clients.
The Verify Integrity option
Reinstall the Modern Warfare 3 Game
Finally, try reinstalling Call of Duty: Modern Warfare 3 if Dev Error 5433 persists after applying all other alternative potential fixes above. Reinstalling is an alternative, more thorough, way to address game file corruption. To reinstall the game with Battle.net, check out the instructions on this Blizzard help page. This is how you can reinstall the game on Steam:
- Open the Steam window and select Library from there.
- Next, right-click Modern Warfare 3 in the game sidebar to select the Manage submenu.
- Select Uninstall twice.
The Uninstall option
- You can reinstall Modern Warfare 3 by clicking the Install button for that game on Steam. Click Install again to proceed.
The potential solutions above will usually fix the Call of Duty: Modern Warfare 3 Dev Error 5433 error on Windows PCs and consoles. Adjusting the On-Demand Texture Streaming setting is the most surefire way to resolve this gaming issue. However, some players might need to try applying the additional potential fixes discussed above. You can also submit a support ticket from this Activision page if more potential error 5433 fixes are needed.
