multiplayer locking after switching a Minecraft account to Microsoft?

Hi! My name is Pam. I'm an Independent Advisor and I'll be glad to help you today.

Can you check your privacy settings please?

https://account.xbox.com/en-US/Settings

Make sure that under Privacy, Xbox One/ Windows 10 online safety, everything is set as ALLOW and EVERYONE.

Note: If you own a child account, make sure to ask the adult account of the family to change the settings for you, okay?

I hope this helps. Feel free to ask back any questions and keep me posted.

Do you have a Nintendo Switch Online subscription?

Nintendo Switch Online subscription will be required for multiplayer. A free Microsoft account is recommended for players to get the most out of this version of Minecraft.

Hi Eco,

Thanks for reaching out to the forums. We understand you have question on log in for Minecraft. You should be able to log into all Minecraft on many different platforms with your Microsoft account. As Cross play requires a Microsoft account.

Cross-platform play available on Xbox One, Playstation 4, Nintendo Switch, iOS, Android, and Windows 10. Cross-play requires
Microsoft account. Xbox Live Gold required for online multiplayer on Xbox One. PlayStation Plus Membership required for online multiplayer on Playstation 4. Nintendo Switch Online membership required for online multiplayer on Nintendo Switch.

Thanks,

Brad

Hi Eco,

Thanks for reaching out to the forums. We understand you have question on log in for Minecraft. You should be able to log into all Minecraft on many different platforms with your Microsoft account. As Cross play requires a Microsoft account.

Cross-platform play available on Xbox One, Playstation 4, Nintendo Switch, iOS, Android, and Windows 10. Cross-play requires
Microsoft account. Xbox Live Gold required for online multiplayer on Xbox One. PlayStation Plus Membership required for online multiplayer on Playstation 4. Nintendo Switch Online membership required for online multiplayer on Nintendo Switch.

Thanks,

Brad

its not work

Hi there! This is Virginia O.

I understand that you are experiencing issues joining in Minecraft game.

I apologize for the inconvenienced this has caused you. I will do my best to help you.

Please make sure that you two are using Minecraft Bedrock Edition because cross-platform play is only supported on Minecraft Bedrock Edition. If either of you is using a different version (e.g., Java Edition), you won't be able to play together.

And then check Microsoft account linking. Both of you need to be signed into your Microsoft accounts on your respective devices. On the Switch, make sure your girlfriend has linked her Microsoft account correctly. She can do this by signing in at https://aka.ms/remoteconnect.

Next is to verify multiplayer settings. To do this on Xbox, go to your account settings and ensure that multiplayer and cross-platform play are enabled. Same with Switch, check the settings on the Switch to ensure multiplayer is allowed.

Make sure that both devices have a stable internet connection. Cross-platform play requires a reliable connection.

And if direct joining isn't working, consider creating a Realm. Realms allow players from different platforms to join a shared world. You can set up a Realm from the Minecraft menu.

Then restart both the Xbox and the Switch after making these changes.

Thank you for your cooperation.