How to Fix Error Code 4 COD: Warzone

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Activision published Warzone, which was created by Infinity Ward and Raven Software. Although some limited-time game modes can support 200 players, Warzone only allows online multiplayer combat between 150 players. Cross-platform play and progression between the three aforementioned games are both features of the game. Battle Royale and Plunder are the game’s two primary game modes at launch. The new in-game currency system for Warzone can be used at “Buy Stations” located throughout the map. For a limited time, Cash can be exchanged for player-created classes in “Loadout” drops.

Additionally, players can buy “killstreaks” and gas masks using Cash. Looting buildings and killing players with cash on them will yield cash. Warzone initially only provided Trios, a three-player squad configuration. However, Solos, Duos, and Quads have all been included in the game’s free post-launch content updates. We’ll try our best to explain the techniques used by people to solve the problem at hand in terms that are easy to understand, but some of the techniques are fairly demanding. Additionally, we won’t limit this guide to the Xbox one apps alone; instead, many of the fixes that are coming will be tailored for gaming PC players as well. This is due to the fact that PC games have also been having this annoying problem.

Ways to Fix Error Code 4 COD: Warzone

Restart Your Console

Before trying anything else, one of the first things we advise is simple but very effective. There is no question that restarting your console works the majority of the time. No matter if you’re using the Activision game launcher on an Xbox One or a computer, turn off everything, delete any unnecessary background processes, and restart the computer right away. If you are still having trouble getting past the error code, it would seem that our case may be more complicated than first thought. Continue reading to learn about additional strategies that could be used in this situation.

Change Your Default DNS Settings to Google Provided Ones

Altering your Windows PC’s DNS settings is among the most helpful things you can try. Doman Name System, abbreviated as DNS, is a crucial part of all computing hardware that supports internet connectivity. It enables access to various IP addresses and facilitates communication with web servers. DNS is also sometimes referred to as the internet’s phone book in more informal contexts. There is a good chance that altering your DNS server settings will resolve this annoying Warzone problem. This is basically what we’re going to do in this situation. Let’s get right to it with the subsequent actions.

The first step is to open the device’s “Settings”. This can be done from the Windows Start menu or from the taskbar if you have the application pinned to the taskbar.

The next step after opening the “Settings” application is to select the “Network and Internet” option.

By doing so, you will see all Internet-related settings for your Windows PC. Now you need to select the “Change adapter options” button under the “Status” page in the overall section. For more information, see the following screenshot.

A new window will now open called “Network Connections.” Here you will see four different connections. The way forward is to correctly select the connection you are actually using on your PC.

Another small window will appear on your screen. Here you can adjust the DNS settings, but not right now.

Finally, after clicking on the “Properties” button is where you need to address another window that appears on the screen. This is where you will finally be able to enter your DNS settings or switch to alternative settings. First, switch to “Use the following DNS server addresses” as specified in the screenshot below and enter “8.8.8.8” in the “Preferred DNS Server” bar.

Then “8.8.4.4” must also be entered in the “Alternate DNS Server” blank. After completing the settings, check the “Validate settings upon exit” checkbox and click “OK” to finish.

Optimize Your Network Bandwith

The next potential solution for this frustrating Modern Warfare problem involves adjusting your network bandwidth for a particular setting in the game Call of Duty: Modern Warfare. We appreciate Reddit user Effected Pringle for making this set of instructions public. The game’s normal functionality appears to be restored by changing the network bandwidth settings for your copy of the game in the “Future Patch Data” option. Please refrain from asking how because neither we nor anyone else seems to know. For the game to function properly, you must set your Future Patch Data’s network bandwidth allocation to a fixed number of 100. Feel free to follow the instructions up top to figure out how to accomplish this.

First, launch the “Call of Duty: Modern Warfare” title from the Battle.net launcher.

Once that is done, look for “Future Patch Data” in the Warzone settings section.

If the network bandwidth at that point is set to 100, change it to 0, save the settings, and then exit the game.

When the game is finished, start it again, access the settings, and set the network bandwidth for Future Patch Data to 100. This should fix the game, so please play and see what happens.

Scan and Repair the Game

We’ll be using one of the many features of the internal Activision Launcher, also known as Battle.net, for this fix. Similar to Steam, but much less well-known than the renowned Valve launcher, is this. If you play on Xbox, skip this section and move on to the next relevant solution. This fix is only for PC users. It doesn’t matter if the game you instal is Call of Duty: Warzone or Overwatch; the Battle.net launcher includes a feature called “Scan and Repair.”

You can find out if any missing configuration files were keeping you from playing the online game using this specialized functionality. The Battle.net launcher will also compare the Warzone game files on your computer to those on one of its specialized servers. If any errors are discovered, the appropriate fix will be released. The specifics of how to do this for the well-known COD battle royale are explained in the steps that follow.

The first step is to launch the Battle.net launcher on your PC. This can easily be done by typing the name of the application in the window’s search bar.

Once Battle.net is launched, go to the Games section and look for Call of Duty: Modern Warfare. A word of warning: Warzone is a free-to-play mode to enjoy within Modern Warfare. Thus, the base game is the latter, of which Warzone is only a part.

Final Words

For the PlayStation 5, Xbox One, and Microsoft Windows, Call of Duty: Warzone, a free-to-play battle royale game, was released on March 10, 2020. During Season 2 of the Modern Warfare content, the game was released. It connects to Call of Duty: Black Ops: Cold War from 2020 and Call of Duty: Vanguard from 2021 and is a part of Call of Duty: Modern Warfare from 2019. Read our guide to resolving error code 4 in Call of Duty: Warzone if you’re having trouble playing the action game on your Xbox One.