If you’ve encountered Error Code 75 while attempting to play Diablo 4, don’t panic. You’re definitely not alone.

This error reads, “There was a problem authenticating your account (Code 75).” Essentially it means that you’re attempting to run an outdated client.

This is quite a common error and, fortunately, a very easy one to fix. It won’t take much effort on your behalf, and you will be back playing Diablo 4 in no time.

Below we outline the causes and every fix for Code 75 in Diablo 4 on both PC and consoles.

How to Fix Error Code 75 in Diablo 4

To fix Error Code 75 in Diablo 4, all you need to is restart your PC or console. By doing this, you should be led to an available update that can be downloaded.

However, if an update does not appear, you can check it manually on each platform by following these steps:


  • Open the Battle.NET launcher.
  • Select Diablo 4.
  • Next to the Play button, select the cogwheel icon.
  • From the drop-down menu, select Check for Updates.
  • If this doesn’t work, select Scan and Repair.

If you have tried restarting your PC and manually checking for an update, the issue could be server side and you must simply wait for the problem to resolve.

Battle.NET check for updates screen


  • Press the Options button on Diablo 4.
  • Select Check for Update.
  • Wait for the Update to install.


  • Press the Xbox button.
  • Select My Games and Apps from the menu.
  • Choose Manage and then Updates.
    • You will see any games that can be updated in this menu.

If the issue persists after manually checking for an update and restarting your console, Error Code 75 could be a problem on the server side. If this is the case, you must simply wait for the developers to resolve the issue.

Diablo 4 Queue loading screen

Diablo 4 Code 75 Explained

The Diablo 4 Error Code 75 happens when your game is outdated and can no longer authenticate your account.

There are three reasons why this can happen. They are:

  • Your game/client needs updating.
  • Your game/client has been corrupted and needs updating.
  • Server issues are preventing Diablo 4 from authenticating your account.

This is a fairly common issue with always-online games as they constantly need you to play on the most up-to-date version.

Former Staff Writer
Whether it's an indie platformer or a 100-hour JRPG, Tom loves talking about games. So much so, he made it his career. Since starting in 2020, he's covered a wide range of topics at sites including TheGamer and The Game Crater.
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