Fix: Warzone 2 and Modern Warfare 2 Dev Error 5476

Call of Duty: Modern Warfare II connects with the new Call of Duty: Warzone 2.0 experience that offers an evolution in the online battle royale. It includes new gaming modes, new maps, seasonal events, and more. Though both the sequel are pretty impressive and players enjoy them a lot, it seems that some of the unfortunate players are experiencing the Warzone 2 and Modern Warfare 2 Dev Error 5476.

Plenty of affected players have started claiming that Dev Error 5476 occurs while trying to launch the game and even while trying to log into it quite often. Now, if you’re also one of the victims to encounter such an issue then make sure to follow this troubleshooting guide to fix it. Well, it’s also worth mentioning that this error isn’t platform-specific, meaning it can occur on any platform at any time.

Fix: Warzone 2 and Modern Warfare 2 Dev Error 5476

Infinity Ward or Activision haven’t released any information regarding the error. Still, there are a couple of homemade, community-tested solutions you can try out to fix the problem by yourself. The issue should be resolved in a couple of days with a fix by Infinity Ward, but you can still get your daily dose of CoD before waiting.

1. Run the Game as an Administrator

Make sure to run the game app file on your PC as administrator access to allow the User Account Control (UAC) access to the system. Sometimes, your system requires the UAC access permission to run a program which is quite important. By following the steps below, you’ll have to allow the admin access for once and it won’t ask you for the same again. To do so:

• Go to the installed Call of Duty: MWII or Warzone 2 game directory.
• Right-click on the application file on your PC.
• Click on Properties > Click on the Compatibility tab.

• Click on the Run this program as an administrator checkbox to enable it.
• Once done, click on Apply and then OK to save changes.
• Finally, double-click on the game app file to launch it.

If, in case, you’re running the game via the Steam or Battle.net launcher, perform the same steps for the respective game client too.

2. Ensure the Game is Up-To-Date

It’s highly recommended to manually check for the game update at your end to avoid any pending game updates by following the steps below. An outdated game version can eventually cause multiple issues or glitches with the game launching and the gameplay experience.

For Battle.net:

• Open the Battle.net desktop app on your PC.
• Now, click on the COD: Modern Warfare II game.
• Click on the cogwheel icon (settings) next to the Play button.
• Finally, select Check for Updates and wait for the process to be completed.
• If there is an update available, make sure to download and install the game update.

For Steam:

• Open the Steam client > Go to Library.
• Click on COD: Modern Warfare II from the left pane.
• Steam will automatically search for the available update.
• If there is an update available, click on Update.
• Make sure to wait for some time until the update completes.
• Once done, ensure to reboot the PC to apply changes.

For PlayStation:

• Turn On your PS4/PS5 console > Go to the Home screen.
• Now, navigate to the main menu on top.
• Head over to the Games tab.
• Scroll down to Call of Duty: Modern Warfare II and highlight it.
• Press the Options button on your controller.
• Finally, choose to Check for Update from the drop-down menu.

For Xbox:

• Turn on your Xbox One or Xbox Series X|S gaming console.
• Press the Xbox button on your controller to open the menu.
• Now, scroll down to the right > Select Settings.
• Scroll down until you see Updates & downloads.
• From the next page, select Keep my console up to date and Keep my games & games up to date to enable the checkbox.

3. Try Changing Your Calling Card and Emblem

Some of the players have mentioned that randomizing or changing the calling card and emblem in the game may fix Dev Error 5476 quite easily. Though not everyone will be lucky enough to fix the issue by using this trick, it’s recommended to try it once.

• Just set the calling card and emblem to “Randomized”.
• Launch the MWII game > Go to Multiplayer.
• Select Barracks > Choose Customization.
• Go to Identity > Choose Calling Cards and pick one of them.

4. Check Activision Online Services

You can also check for Activision Online Services here to ensure whether there is an issue with the server or not. Sometimes issues with the servers or online services might trouble you to get into the game or join the crossplay in COD titles. You’re good to go if the online status is active or operational for all platforms. Otherwise, you can wait for a couple of hours and try again.

5. Check Your Network

You can next check the internet connection status at your end, whether you’re using a wired (ethernet) connection or a wireless (Wi-Fi) network. Sometimes multiple device connectivity with the same network can also cause slower speed and lack of stability. Sometimes, it’s better to switch between wired and wireless or vice versa to check for the same.

Additionally, you can check for the data speed test online while connected to the same network or try playing any other multiplayer online game to check for the issue.

6. Power Cycle the Wi-Fi Router

We’ll also recommend you perform a power cycle to your Wi-Fi router by following the steps below to easily clear networking glitches or temporary cache issues.

• Just Power Off the Wi-Fi router.
• Once the LED indicator stops blinking, unplug the power cable from the power source.
• Now, wait for around 30 seconds, and then plug back the power cable in.
• Then Power On the router and check for the issue again.

7. Power Cycle the Console or PC

You can try performing the power cycle method on the gaming device to avoid system glitches or cache issues. To do that:

• First of all, shut down your console or PC completely.
• Once turned off, unplug the power cable from the console/PC.
• Now, wait for around 30 seconds, and then plug the cable back in.
• Turn on the gaming device and check for the issue again.

8. Repair Game Files

Sometimes issues with the corrupted or missing game files on the PC might occur several conflicts when it comes to launching the game or during the gameplay. Luckily, you can easily verify and repair the installed game files on the PC version with the help of the game launcher by following the steps below.

For Battle.net:

• Launch the Battle.net client on your PC.
• Now, click on the COD: Modern Warfare II that you’re trying to repair.
• Click on the cogwheel icon (settings) next to the Play button.
• Select Scan and Repair > Click on Begin Scan.
• Wait for the repair to finish > Once done, close the launcher, and reboot the PC to apply changes.

For Steam:

• Launch Steam > Click on Library.
• Right-click on COD: Modern Warfare II from the list of installed games.
• Now, click on Properties > Go to Local Files.
• Click on Verify Integrity of Game Files.
• You’ll have to wait for the process until it gets completed.
• Once done, just restart your computer.

9. Contact Activision Support

If none of the methods worked for you then make sure to contact Activision Support for additional help. You should also create a support ticket for the same to get a better resolution asap. The chances are high that developers will try investigating this issue and fixing the same. You might have to wait further to get it resolved.

That’s it, guys. We assume this guide was helpful to you. For additional queries, you can comment below.