Diablo 4 may be a popular title, but it still has its fair share of issues. One of them is the Online Play is Blocked error in Diablo 4, which prevents players from logging into the game.

If you’re currently in the same boat, don’t worry, as we’re going to discuss how to fix Online Play is Blocked error in Diablo 4 through several methods.

What is the Online Play is Blocked error in Diablo 4?

Online Play is Blocked error in Diablo 4 is associated with error code 300031. This usually appears when there is a problem with your connection, but it could also pop up due to other reasons, such as server issues or a temporary bug.

Diablo 4 Inarius
Credit: Blizzard Entertainment

How to fix Online Play is Blocked error in Diablo 4

Check for server maintenance

In some cases, the issue can be from Blizzard’s end. The best way to check this is by visiting the official Blizzard Customer Support account on Twitter.

If the account has posted anything about ongoing maintenance, then there’s nothing you can do except wait for the servers to get up and running again. 

Diablo as the featured image in the ONE Esports article "5 games like Diablo to continue your endless dungeon adventures"
Credit: Blizzard Entertainment, ONE Esports
5 games like Diablo for more dungeon adventures

Power cycle your router

The best way to get rid of bugs or glitches that may be causing network-related errors is by power cycling your internet router. This is different from a regular restart and takes a bit more time.

To perform a power cycle, turn off your router and unplug its power cable. Then, wait for around four minutes and plug everything back in. Now, turn on your router and check if the error is gone.

Six fastest ways to level up in Diablo 4
Credit: Activision Blizzard
Diablo 4: Fastest ways to level up with some tips and tricks

If you’re playing Diablo 4 on a console, we’d suggest you power cycle it too, just to stay on the safe side.

Update your game

Error code 300031 can also pop up in Diablo 4 if you haven’t updated your game. But if you have auto-update enabled and the system already installed the latest version, try restarting Diablo 4 a few times to make the game recognize it.

This was everything you needed to know about how to fix the Online Play is Blocked error in Diablo 4. 

READ MORE: How to get Baneful Hearts in Diablo 4 Season 4