Warzone: How To Fix Error Code 4 On Xbox

Is the error code Warzone 4 Xbox not letting you enjoy your multiplayer experience? Read ahead and find out how to fix it promptly.

What is the Warzone Error Code 4 on Xbox One?

Warzone Error Code 4 Xbox
Warzone Error Code 4 Xbox

Call of Duty: Warzone—the free-to-play battle royale portion of Modern Warfare—has a whole swath of randomly occurring error prompts and issues, and the error code 4 is just another constituent of this glitch-centric sphere as a whole. However, knowing how this problem surfaces can potentially help us resolve the matter at hand, hence the mention of this section in the tutorial. 

Key Highlights
  • You will most likely encounter error code 4 when you are trying to log into COD Warzone and the title is attempting to find your profile.
  • A lot of the methods of fixing error code 4 mentioned here are not only limited to Xbox but can also be used for a PC.
  • You should first try to restart your system and also make sure that your internet connection is able to run COD Warzone, using speedtest by Ookla.
  • If you are on a PC, try pressing Alt and F4 at the same time when you reach the loading screen to see if that fixes error code 4. Additionally, use the Battle.net launcher’s repair tool to scan and repair the game.
  • More methods of fixing error code 4 exclusive to PC are deleting the “Call of Duty Modern Warfare” folder using file explorer, and troubleshooting your internet using command prompt.
  • Try to optimize your network bandwidth from within COD Warzone settings.
  • Use a different internet connection than the one you are already using. A quick way to see if that will work or not is by using a personal hotspot connection.
  • Switch your current DNS settings to the DNS that Google uses.
  • If every single method fails to fix error code 4, then try to reinstall COD Warzone entirely.

According to player reports in Call of Duty community forums, this vexing bother manifests when you’re trying to log into the game and the title is trying to find your profile.

Warzone then abruptly manages to cease its operation and respond to you with this distinct error prompt, thereby making it impossible to get inside a multiplayer lobby. As soon as you launch the FPS and try to sign in, you normally see a couple of processes go down as the game runs the relevant operations. You first perceive the “Loading Game Data” prompt, followed up by “Fetching Profile Data.”

It’s the latter where the issue, unfortunately, springs up. In many cases, the game stays at this specific prompt for a good 5-10 minutes, until receding the player back to the title screen with the Warzone error code 4.

More From eXputer: How to Fix Modern Warfare Dev Error 6036.

How to Fix Error Code 4 Warzone

The following is our round-up of the best ways out there to fix this irksome Warzone error. Some of the methods that people have implemented to get the better of the issue at hand will get fairly demanding, but we’ll do our best to pen them down in simple-to-understand terms.

In addition to that, many of the fixes ahead will be oriented for PC players as well, and we won’t be restricting this guide to the Xbox platform only. 

This is because gamers on PC have been experiencing the issue in a similarly infuriating manner. Fortunately, there are some potential solutions that have been able to work out the fix for PC players, so it’s definitely worth mentioning them here in the article. Without any further ado then, let’s get started right away. 

Restart Your Console

One of the first things that we recommend going for before attempting anything else is simple yet quite effective. Restarting your console bears fruit in most cases and there’s just no doubting that. No matter if you’re on Xbox One or PC playing through the Activision game launcher, shut down everything, erase unwanted background processes, and reboot the system right away. 

However, if you still cannot get through the error code, then it appears our case here is a little more deep-rooted than we thought. Keep on reading to find out what other ways can be approached in this case.

Test Your Network Connection

Call of Duty: Warzone isn’t like other COD titles where there’s an option to play a single-player campaign mode. This, on the other hand, is a live-service game that actively uses the internet at all times, so the emphasis is definitely on an adequate network connection. You need to have stable internet speeds with minimal ping to establish a firm link with Warzone’s servers. 

After thorough research and some level of personal testing, we’ve gathered that users are required to have at least a 10 Mbps download speed to play Call of Duty: Warzone free of issues. If you’re a streamer, however, that figure is going considerably up. Since multi-media content streaming software adds up to a heavy load, users typically require 60-100 Mbps of download speed to play through the title without breaking a sweat. 

As for the ping, which is yet another crucial metric of what makes online gaming possible, any number is workable as long as it falls under 100 milliseconds. For better performance, you can always get a better internet connection, of course. With that said, the crux of this discussion is to test your internet connection. That way, you’ll figure out whether a faulty, inconsistent internet connection is making all these issues spring up. 

Our website of choice for completing the task at hand is Speedtest.net. It’s recommended for getting accurate test results, so you can definitely rely on it to figure out the strength of your internet connection. Here’s what we were able to get from the website. 

call of duty warzone error code 4 xbox
Speed Test Results by Ookla

Press Alt and F4 Together at the Loading Screen

A quick and simple fix has been making rounds on community forums online and it’s all about pressing a combination of keys at the same time. It appears that pressing “Alt” and “F4” together, which is the shortcut key for immediately shutting down the application you’re in, will resolve the problem the next time you load the game. 

Now, you shouldn’t be pressing the aforementioned combination of keys as soon as you launch the title. Instead, this should be done when you’ve reached the start-up screen where it says “Loading Online Data.” In that very instance, shut the application down, and either you’ll get an update for the game the next time you start it, or the error code in question will simply disappear. It’s basically a win-win situation in both cases. 

If you don’t get it right on your first go, give the method a couple of more attempts and you’ll hopefully be able to resolve the issue. Wait 1-2 seconds after “Loading Online Data” appears and then proceed to shut the game app down. With that said, if this methodology doesn’t help fix the issue for you, keep on reading to see what else can be done to get back on your feet. 

More From eXputer: FIXED – Modern Warfare Dev Error 6178 [2022].

Scan and Repair the Game 

For this next fix, we’ll be utilizing one of the many features of the in-house Activision Launcher, also known as Battle.net. This is something that’s similar to Steam, although far less popular than the famed Valve launcher. This fix is specific for PC players, so if you’re on Xbox, skip this section and continue reading from the next relevant solution. 

The Battle.net launcher will cross-check the Warzone game files stored on your PC with the ones it has stored on one of its dedicated servers. If any discrepancies are found, the fix will be issued accordingly. The following steps will explain how you can do this exactly for the famous COD battle royale. 

1. The first step is to launch the Battle.net launcher on your PC. This can be done effortlessly from the Window Search bar by typing in the name of the application. 

Launching Battle.net
Launching Battle.net

2. After you have Battle.net all fired up, hover over to the “Games” section to find Call of Duty: Modern Warfare. A quick reminder: Warzone is a free-to-play mode that enjoys its space within Modern Warfare. Therefore, the base game is the latter and Warzone is just a part of it.

This is why you won’t find a separate version of Warzone, at least until yet. Anyhow, when you’ve located the title in the Battle.net launcher, double-click on it to reveal more options. Select “Select and Repair” as shown in the screenshot below to get to the next step.

Alternatively, you can also access the main game page within the launcher to visualize the aforementioned option as well. You can then simply click on it to begin the process.  

Scanning and Repairing Call of Duty: Warzone
Scanning and Repairing Call of Duty: Warzone

As soon as you click on “Scan and Repair,” the procedure of scanning and repairing the game will commence. This shouldn’t take too long, so sit tight until the system gets back to you. After you have been notified that the process was finished, try launching the title to see if it works now.

There’s a strong likelihood of resolving this pertinent issue after going through with this method, so let’s just hope things work out in your favor.

If they don’t, however, don’t lose hope and continue forward since we’ve got plenty of things left to try. 

Related Read: Modern Warfare Dev Error 6065

Erase the “Call of Duty Modern Warfare” Folder 

This is yet another fix that pertains to PC players, so if you’re on Xbox, keep on reading to try out something that suits Microsoft‘s frontrunning game console. When you download Call of Duty: Modern Warfare on your PC, all related game files are locally stored on the device. However, there’s one main configuration file that’s allegedly causing all the trouble and preventing the title from loading up. 

We’re not too sure what file is this exactly, but users have reported that deleting the “Call of Duty Modern Warfare” folder altogether helps you fix the error code 4 Warzone. You will be prompted to update the game in the wake of this procedure, which will restore the title’s optimal working. To learn how to get this done, follow the steps listed ahead. 

1. The first step is to open the “File Explorer” system app on your Windows PC. This should be fairly easy to do, given that you’re using the Windows Search bar.

Opening the "File Explorer" App on Windows 10
Opening the “File Explorer” App on Windows 10

2. To continue, click on “My Computer” in the sidebar and select “Documents” in the middle of the screen to proceed. 

3. Right after that, you’ll be able to access a folder called “Call of Duty Modern Warfare.” Delete it from your system and continue to empty the Recycle Bin as well to finalize the process.

Deleting the Call of Duty Modern Warfare Folder on PC
Deleting the Call of Duty Modern Warfare Folder on PC

That’s about it! After deleting this specific folder, you’ll be able to start the title afresh the next time you boot it up. Either you’ll receive an update or you’ll be simply able to continue playing like before. Either way, it’ll be no less than a win-win situation. 

With that said, if you cannot find this folder in the “Documents” directory, you can try looking it up in the hard disk where your installations are normally stored. People typically keep Local Disk (C:) as their default drive for major downloads such as this, but you might have a different installation path. Use the search bar within the “File Explorer” app for some quick results. 

On a side note though, the method described above does come with a significant con that many players might be put off from afterward. Deleting the whole “Call of Duty Modern Warfare” folder will result in losing your stored in-game preferences along with other stored settings.

If you spent some serious time tweaking your controls in Call of Duty: Warzone, there’s a slight variation that you can approach and get even better results. 

This forthcoming piece of information has been shared by Redditor 12YearsACrip, so props go to them for the helpful advice. Follow the steps listed below to potentially resolve the Warzone error code 4 and keep your saved settings as well.

1. Open the “File Explorer” app and locate the “Call of Duty Modern Warfare” folder. You should now be able to get grips with digging this directory out pretty quickly.

2. After finding the aforementioned folder, click on it and scroll down until you find the “Players” folder.

3. Enter this folder to find the “ppsod.dat” file. You can delete this instead and restore the functionality of your copy of the game similar to how it was before.   

If you’ve tried the steps above and your efforts didn’t bear any fruit, keep on reading to try other potential fixes to attempt. Sooner or later, some form of solution will eventually resolve this irksome bother for you. 

Troubleshoot Your Network Using the Command Prompt

Next up, we’ll be utilizing the Command Prompt to tweak some of our IP-related settings on the Windows PC. It appears that renewing your IP address through this high-end system utility potentially resolves the Warzone error 4 issue.

Many players were able to get the game working by implementing a series of commands in the Command Prompt and rendering their internet connection more profound. 

All you have to do to employ this potential solution to the issue at hand is follow the steps given below. Make sure to replicate the provided guidelines verbatim for the best results. 

1. The first step is to open the Command Prompt on your Windows PC. This can be done effortlessly from the Windows Start menu or from the Taskbar area if you have the app pinned there. Lastly, make sure you run the app as an administrator to avoid any potential hassles.

Running the Command Prompt as an Administrator
Running the Command Prompt as an Administrator

2. As soon as the Command Prompt is up and running, use the following command and press the “Enter” key. This will help us flush our DNS, meaning that it’ll clear away any left-over IP addresses that might possibly be affecting our entanglement with Blizzard’s servers. 

ipconfig /flushdns
Flushing the DNS Resolver Cache
Flushing the DNS Resolver Cache

3. Right after that, we’re going to input another command. This time, we’ll be registering a new DNS instead of clearing it. Use the following and enter it into your Command Prompt. The process can take a while, so do sit tight. We’ll also be creating a perceivable report and it’ll pop up in the “Event Viewer” menu after 15 minutes or so. 

ipconfig /registerdns
Lost Ark error 10010
Registering a New DNS

4. The next step is to renew your DNS. Use the following command to go through with it painlessly. 

ipconfig /renew
Renewing the IP Address
Renewing the IP Address

That’s basically about it! You’ve successfully managed to renew your IP address and refresh it as well, meaning that there’s a nice chance of getting back on your feet in Warzone now. Try launching the game to see if you can get into the multiplayer side of things smoothly. If you finally can, congratulations! However, keep on reading and try the fixes outlined ahead in the case that the game is still giving you issues. 

Optimize Your Network Bandwith

This next potential fix for this vexing Modern Warfare issue pertains to tweaking your network bandwidth for a specific setting within Call of Duty: Modern Warfare. Thanks to Redditor Effected_Pringle for bringing to light this set of instructions. It appears that adjusting the network bandwidth to your copy of the game under the “Future Patch Data” option restores the game’s normal working.

Don’t ask how because we don’t know either and we doubt anyone else does. You have to have your Future Patch Data’s network bandwidth allotted to a set figure of 100 for the game to run properly. Feel free to follow the steps listed ahead and learn how to pull this off. 

  1. The first step is to launch the Call of Duty: Modern Warfare title through the Battle.net launcher. 
  2. Once done, go into the settings section of Warzone and find “Future Patch Data.”
  3. If the network bandwidth for it is set to 100, change it to 0 and quit the game after saving your settings. 
  4. Once the game shuts down, launch it again, access the settings, and set the network bandwidth for Future Patch Data to 100. This should fix the game for you, so try playing it out and see how it goes.

This has been one of the most definite fixes for the Warzone error code 4, so we have high hopes for it to resolve the error prompt for us. If, however, 

Try Connecting the Game Through a Personal Hotspot 

Try switching up your internet connection with a different one to see if the COD Warzone error code 4 Xbox can be mitigated. A quick way to see if this will help or not is by connecting the game through your mobile’s hotspot. Go into the “Network” settings of your Xbox One or Series X\S and connect the console to your mobile network. Once a connection has been established, try launching Warzone and see if you can hop into the title’s multiplayer.

Change Your Default DNS Settings to Google Provided Ones

One of the most helpful things to try is changing your DNS settings to different ones on your Windows PC. DNS is short for Doman Name System and is an integral component of computing devices that house the capability of using an internet connection. It makes access to different IP addresses possible and makes communication with web servers a reality. More colloquially, DNS is also referred to as the phonebook of the internet. 

There is a high probability that the solution to this bothersome Warzone issue rests within changing your DNS settings. This is what we’re going to basically do here in the fix at hand. Let’s get right down to it with the following steps. 

  1. The first step is to open the “Settings” of your device. This can be done through the Windows Start menu or through the Taskbar if you have the app pinned there. Opening Settings on Windows 10

    Opening Settings on Windows 10

  2. The next step after having the “Settings” application opened is to select the “Network and Internet” option. The following screenshot describes where to click. Clicking on the "Network and Internet" OptionClicking on the “Network and Internet” Option
  3. Doing so will take you to all the internet-related settings of your Windows PC. You now have to select the “Change adapter options” button under the “Status” page of the whole section. Check out the following screenshot for more information. Changing Adapter OptionsChanging Adapter Options
  4. A new window will open now called “Network Connections.” You’ll be met with four different types of connections here. The way forward is choosing the right connection that you’re actually using on your PC. If you’re using a wired Ethernet connection, you’ll have to go with that one to move further, so do evaluate this crucial point right now. We’re going to go with Wi-Fi as an example here. Double-click on the correct connection type and then click on “Properties” to get to the next step. Selecting the Correct Connection TypeSelecting the Correct Connection Type
  5. You’ll now be seeing another small-scale window on your screen. This is where you’ll be able to adjust your DNS settings, but not quite right now. Scroll down the list of the items on show and select “Internet Protocol Version 4 (IPv4).” Then, click on “Properties” to get to the next step.how to fix error code 4 warzone xbox
  6. The final step is where you’ll have to deal with another window that will pop up on the screen after clicking on the “Properties” button. This is where you’ll finally be putting in the DNS settings and switching them to alternate ones. To get started, toggle the “Use the following DNS server addresses” as specified in the screenshot below and enter “” in the “Preferred DNS server” bar.
  7. You’ll subsequently have to enter “” in the blanks for “Alternate DNS server” as well. As soon as you’re done with all that, don’t forget to check the box beside “Validate settings upon exit” before finalizing the process by clicking on “OK.”Opening the Properties of IPv4
cod warzone error code 4 xbox
Inputting the Right DNS Settings

That’s all about changing your DNS settings to Google ones for fixing the error code 4 Warzone. We suggest restarting your PC afterward to properly apply the changes to your system.

After the device boots back on, check if Warzone runs without getting interrupted by the error prompt in question. You should be able to play the game perfectly now, but if the problem still continues to exist, then it appears you only have one more solution left. 

Reinstall Call of Duty: Warzone   

If all else fails and you’re basically left with nothing more to try, then the only solution for the error code 4 Warzone Xbox appears to be a complete reinstallation. Delete the game from your console and get it back from your library of redeemed titles. Call of Duty: Warzone is available to download for free from the Microsoft Store anyway, so you shouldn’t be facing any issues in installing it again on your Xbox One or Series X|S. 

Players from across the globe still seem to be running into a ton of issues that bars them from playing one way or the other. Some of the most persistent Modern Warfare or Warzone error prompts include Dev Error 6039 and Current Profile Is Not Allowed. These either block the player’s access to multiplayer sessions or prevent them from loading up the game. 

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Matt Hunter

With four years of experience as a tech writer on a multitude of websites, Matt Hunter currently reports to eXputer with the latest in gaming.

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