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If you’re experiencing the Diablo 4 error code 401003 – here’s how to fix it.
There’s been no shortage of pesky bugs and error codes since Diablo 4’s launch, though Blizzard has been pretty swift in sorting out a hotfix. That doesn’t mean all the bugs are gone though. Enter error code 401003. Below we’re going to discuss what it is and how to fix it. Let’s go!
How to fix Diablo 4 error code 401003?
You’re getting the Diablo 4 error code when your game tries re-establishing the network connection after it disconnects. Unlike other error codes where it’s clearly widespread and up to Blizzard to sort out, error code 401003 is up to you.
First thing you should try is restarting the game. There’s a good chance that restarting the game will establish a new connection with the server.
If that hasn’t worked, try troubleshooting your network. If your console or PC isn’t connected to the internet, then that will probably be the culprit. Simply reconnect your device.
Next on our list is restarting your modem and router. Our friends over at PCGuide can help you if you’re struggling to reboot your router. While you’re at it, it might be worth restarting your PC or laptop too.
It’s also worth checking if your device’s firewall could be blocking Diablo 4 from connecting to the network. Make sure you allow the app through the firewall on your Windows device by heading to the start menu and changing the settings.
If none of these options work then your last resort is to contact your ISP as there could be an issue with the wiring. It may seem unlikely, but the error code 401003 is a client-side issue, so it really is up to you to solve.
What is Diablo 4 error code 401003?
The Diablo 4 Error code 401003 occurs when you the game loses connection to your network. It is primarily a client-side problem, meaning that troubleshooting needs to be performed from your side to resolve it.
