Hogwarts Legacy Error Code WB4000001: How to fix it?

Hogwarts Legacy Error Code WB4000001: How to fix it?
Amaar Chowdhury Updated on by

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If you’ve encountered the Hogwarts Legacy Error Code WB4000001, here’s how to fix it.

Hogwarts Legacy’s launch has been extremely exciting, however it’s been mixed with a series of crashes, frame drops, memory leaks, and driver issues. In light of these issues, we’ve been seeking out the most reliable methods to fix them.

The recent error, WB4000001, is actually an error regarding the Warner Bros account authentication service. This isn’t a fatal error for the game, nor should it really affect your performance in-game. This means that you can carry on brewing potions, casting spells, and flying broomsticks once the minor issue is resolved.

That said, let’s get straight into how to fix Hogwarts Legacy Error Code WB400001.

Hogwarts Legacy Error Code WB4000001 fix

  • Sign out and log back in
  • Clear game cache
  • Allow Hogwarts Legacy to pass firewall

The fix for this error code is actually really simple, and all you need to do is sign out of the Warner Bros account and sign back in again. It’s more of a networking issue than a hardware problem.

What is Hogwarts Legacy Error Code WB4000001?

Hogwarts Legacy Error Code WB4000001 is caused by a networking issue with the Warner Bros client. Essentially, your account has, likely mistakenly, been unable to have been authenticated as a legitimate account. This happens if there is an issue with data transfer between your PC and the Warner Bros server, for example a packet is lost during the service.

Your best option is to sign out and sign back in again.

This can also be an issue if you’re playing a pirated or illegitimate copy of them, and in that case, you’re on your own there, pal.

If you are playing a certified copy of the game, and the issue persists, you should contact Warner Bros themselves, as they will be able to assess the situation.


We’re going to be keeping an eye out for the latest updates on Hogwarts Legacy bug fixes and crashes, so if you’re being plagued with them, we’re the place to go for help. In the meantime, you might be interested in reading about the best GPU for Hogwarts Legacy and the best monitor. Check back in with us periodically for the latest updates on the games.

Frequently Asked Questions

Is Hogwarts Legacy Error Code WB4000001 a serious issue?

It’s not really that serious, and the fix is very simple as you just have to sign out and in again.

Is Hogwarts Legacy Error Code WB4000001 a problem with internet connection?

It is most likely an issue with your connection to the Warner Bros servers.