How to Fix Dev Error 5573 in Call of Duty: Warzone?

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Activision, one of the biggest publishers in the gaming industry, has made headlines with Call of Duty: Warzone. By no means the latest game in the franchise or the most innovative, the game is nonetheless loved. It brings a plethora of new features to the critically acclaimed series – something direly needed. And it comes with just the right mix of old-school nostalgia and reorganized, neater gameplay. With the latest next-gen features like ray-tracing added with the new update, things are looking good for fans of the series.

One of the most attractive features the game can offer, however, is the free to play status it boasts. Regardless of platform, anyone can download the game and hop online at no cost. With Call of Duty: Warzone it seems the goal was to push rival Fortnite out of the competition. Even months after launch, player counts are rising – a very rare accomplishment for Call of Duty.

As always, though, a game centered around multiplayer has its drawbacks. Never mind the fact that not everyone has a fast enough broadband setup with enough bandwidth for the game. The very premise of an online only game can put you on edge, since it means dealing with errors and glitches on a daily basis. It can be frustrating, especially when contacting customer support turns out to be completely fruitless.

Call of Duty: Warzone Developer Error 5573 takes Twitter by storm

If you’ve played Call Of Duty: Warzone for a bit, chances are you’ve faced similar errors before. While the big ones get patched out by Raven Software pretty quickly, it’s always the small bugs that slip through the cracks. One such bug that people have been struggling with is the Dev Error 5573.

Reports from all over the internet came in about this error. According to some, people have been facing this issue for more than a few weeks now. Bizarrely, nobody from Activision has stepped forward with solutions so far.

People have come forward with fixes, stepping in where the actual developers are silent, but as of the time of writing there isn’t a universal solution. So if you’re one of the many trying to hop on in to a quick match of Warzone but encounter this error at every turn, you’re in luck. We’ve compiled a little list with the necessary information to understand the error and hopefully fix it.

Treyarch Studios, one of the many studios powering the game, recently took to Twitter to address some issues. Sadly, they chose to only talk about a different error often found in conjunction with this one. Even more disappointingly, the issue was restricted to PC players alone, whereas dev error 5573 seems to affect console players as well. Other studios have kept stony silence, refusing to comment on the situation.

Understanding when Call of Duty: Warzone’s Dev Error 5573 began

Call of Duty Warzone
courtesy of u/Aldo_0402 on Reddit

The newest update brought a mixed bag, to say the least. Although bleeding edge features like raytracing and Call of Duty: Black Ops Cold War were more than welcome, it did come with some downsides. For one, the majority of reports have come after the latest update dropped. This may be evidence that the update itself introduced these bugs in the first place. While it is also possible that the bug always existed and just was never noticed, in light of recent events with updates and this game, it doesn’t seem very likely.

Conflicting accounts of what causes Developer Error 5573 makes it a tricky bug to diagnose. Of course, the people in charge of actually solving these kinds of issues aren’t helping much, either. Until that happens, there’s no need to stare at an empty screen when you could be in game. Just follow our tips and you should be airdropping into another match soon.

1) For PC, update graphics card drivers

We cannot stress this enough – update your drivers. It doesn’t matter when you last updated them – just update your drivers. For the less tech savvy, a graphics card is a unit of your computer that is responsible for rendering the games you play in real time. It is in charge of just about everything you’re viewing on screen, and a lot of behind the scenes work too.

With all that work to do, you have to make sure your game is using the same interface as your graphics card to handle data. Otherwise a lot can get left out – leading to errors.

2) Change your calling card settings

For a lot of folks, one simple fix they found was to change the settings on their calling card. In every game since Modern Warfare 2, players have a customizable little banner called a calling card. Whenever you kill someone in the game, that player is shown your gamertag and your banner i.e. calling card. Depending on what challenges you might have completed, you can show off in different ways in the games.

For the purpose of this fix, users have suggested changing the settings on your chosen calling card. In case you don’t really care too much for the feature, you might find this annoying, but it is worth a shot. Change the settings from choosing a random calling card to choosing a custom one. It is a small nuisance, but if it’s the difference between being able to play and not being able to, then we’ll take it.

Select a calling card on your own, and hop back into the fray!

3) Reinstall Call of Duty: Warzone

It might be a pain, especially considering the massive size of the game, but it might also be necessary. Sometimes pieces of data are lost while downloading and installing, and if you don’t want to go through the more techy solutions to that problem, or if you’re on console, there’s only one choice. You have to delete the entire game and then download it again.

4) Repair the game’s files

As we mentioned above, there’s many a slip between the cup and the lip, so to speak. Data that is downloaded correctly might not always be installed correctly, which means there can always be mistakes in the games coding. Offline, it might not matter – but online, multiplayer servers might think you’re trying to cheat and block you. What you need to do, then, is pretty straightforward.

Go to and download the battlenet app, which offers access to their repair tools. Repair the game, which means looking through the code for errors, and correcting them. This should help solve the issue for most people.

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