Call of Duty: Warzone and Modern Warfare Error Code 4: Troubleshooting Guide

Encountering error code 4 in Call of Duty: Warzone or Modern Warfare? This guide provides solutions to resolve this frustrating issue on Xbox One and other platforms. The error typically disconnects you from the game with a message indicating server disconnection.

Solutions:

1. Restart Your Console/PC: The simplest fix is often a restart. This closes unnecessary background processes and refreshes connections.

2. Check Server Status: Visit a site like Downdetector to verify if the Call of Duty servers are experiencing outages or maintenance. If so, patience is key.

3. Verify Your Internet Connection: Warzone requires a stable internet connection. Aim for at least 10 Mbps download speed and a ping under 100ms. Test your connection speed using an online tool. If your connection is weak, try these steps:

• Open Settings.
• Navigate to Network & internet > Troubleshoot > Additional troubleshooters.
• Select Internet Connections and run the troubleshooter.

4. Scan and Repair Game Files (Battle.net): The Battle.net launcher has a "Scan and Repair" feature to detect and fix corrupted game files.

• Launch Battle.net.
• Select Call of Duty: Warzone.
• Go to Options > Scan and Repair > Begin Scan.

5. Delete the Cache Folder: Clearing cached files can resolve the error.

Step 1: Close Blizzard Processes:

• Open Task Manager (right-click the taskbar).
• Locate and end all Blizzard-related processes.

Step 2: Delete the Cache Folder:

• Press Win R to open the Run dialog.
• Type %ProgramData% and press Enter.
• Locate the Blizzard Entertainment folder and delete it.

By following these steps, you should be able to resolve error code 4 and get back to gaming. Remember to check for updates to both the game and your operating system.

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