4 Ways to Fix the Minecraft “Failed to Login Null” Error on a Windows PC

Minecraft players have reported a “failed to login null” error occurs when they try to join servers. A player described that issue on Reddit like this, “So, I just bought Minecraft, downloaded the official launcher, and logged in it with no trouble. Although, as soon as I tried entering premium servers (hypixel, mineplex, invadedlands), it showed up ‘failed to login: null.’” Players can’t join servers in Minecraft when this issue arises. This is how you can fix the Minecraft “failed to login null” error on a Windows PC.

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Unblock Microsoft Account Settings

The most widely confirmed way to resolve the Minecraft “failed to login null” error is to unblock Microsoft account settings. This potential resolution involves enabling all Privacy and Xbox settings within your Microsoft account. You can apply this potential fix like this.

1. Open this Xbox page and log in to your Microsoft account from there if required.
2. Click the Privacy & online safety tab on the left of the page.
3. Select the account user name you’re utilizing in Minecraft.
4. Click the Privacy tab.
5. Select Everyone or Allow for all the privacy settings. Make sure none of those options are set to Blocked.
   
   

   The Privacy tab

6. Next, click Xbox and Windows 10 devices Online Safety beside the Privacy tab.
   
   

   The Xbox settings

7. Select Allow for all settings there. This means no options can be set to block.
8. Press the Submit button.

Log out and Back Into Minecraft

Some Minecraft players have fixed the “failed to login null” error by logging out and back into the game’s launcher. This is how you can log out and back into the Minecraft Launcher.

1. Open your Minecraft Launcher app.
2. Click the account button and select Log out.
   
   

   The Log out option

3. Press the Minecraft Login button within the launcher.

Disable VPN Connections

1. Press the Windows logo + S search box hotkey.
2. Type VPN into the search box, and click VPN Settings.
3. Select your added VPN in Settings.
   
   

   The Disconnect option

4. Click Disconnect to disable the VPN.

Reset the Minecraft Launcher App

Resetting the Minecraft Launcher app will clear its data. Doing this might resolve issues with the app causing the “failed to login null” error. You can reset the Minecraft Launcher app as follows.

1. Click Type here to search box or button to access the file finder utility.
2. Enter Apps & features to select the matching search result.
3. Select the Microsoft Launcher app and click Advanced options.
4. Click Reset to bring up a confirmation prompt.
   
   

   The Reset option

5. Select Reset again to confirm.

The potential resolutions above usually fix the Minecraft “failed to login null” error on Windows PCs. Resolutions one and two are especially widely confirmed to work. If you need more potential solutions for this error, consider sending submitting a support ticket from this Minecraft help page.