How to Fix Error Code 4 in CoD Warzone

Do you want to know how to fix error code 4 in CoD Warzone? CoD Warzone is one of the world’s most popular and widely-played battle royale games. Unfortunately, this game doesn’t come without its fair share of technical issues like Error Code HillCat. One such issue is error code 4, which can be infuriating as it prevents players from connecting to the Warzone servers. This guide will tell you how to fix Warzone error code 4 in CoD Warzone.

What is The Error Code 4?

Error code 4 shows the Error message “you have been disconnected from Call of Duty, Modern Warfare servers.” and asks you to visit the Activision support page.   This error is most commonly encountered while connecting to the Warzone servers. However, it can also occur when attempting to join a game session with your friends or when attempting to join a match after being away from the game for some time.

Error code 4 is believed to be caused by server-side authentication issues. This means the game struggles to verify your identity as a legitimate player. A slow internet connection could also cause a firewall or anti-virus to block the game or interrupt your network connection.

What Causes Error Code 4 in CoD Warzone?

You can fix error code 4 in CoD Warzone by ensuring a stable connection. For example, a slow or unstable internet connection can sometimes cause CoD Warzone to crash with error code 4. Slow Wi-Fi, overloaded servers, or several other issues can cause this. Here are the possible error-fixing methods you can use.

1. Check CoD servers: The first step is to check if the CoD Warzone servers are down. If the Activision site shows no server status or it’s showing as working, then it means the servers are up. You can also check the status of CoD Warzone on Down Detector or other similar services.
2. Restart your router: If the servers are up and running, then it’s possible that there could be a fault with your home router. The most effective way to fix this is to restart your router or modem and see if it resolves the issue.
3. Check Firewall Settings: If restarting your router doesn’t help, then it’s time to check the firewall settings of your PC. There are usually some default security rules that can block the game from connecting to the servers. In addition, you must add an exception for CoD Warzone in your firewall settings.
4. Update drivers: Outdated or faulty drivers can also cause error code 4. Ensure to update your PC’s graphics card, network card, and other device drivers. Hopefully, this will help the game communicate with your hardware and adequately resolve the issue.

We hope this guide has helped you fix error code 4 in CoD Warzone. If you have any further questions or concerns, please get in touch with us. Good luck!

Call of Duty: Warzone 2 and Modern Warfare 2 are available for PlayStation 5, PlayStation 4, Xbox Series X|S, Xbox One, and PC.

Sources: TechFixIT, Minitool