Two x boxes in the same house.

Hello there @JeffHughes9, I hope everything is going well!

Thank you for reaching Microsoft Xbox Forum support. Sharing is caring right! Normally when you home share a console using your account, both parties should be able to benefit from the games and subscriptions of the account. What seems to be the issue in
your case is the fact that you are both trying to use the same account at the same time. Since playing with the same account in different consoles at the same time is impossible, the way to achieve your request would be to mark your console as a home console
by your son's account, and then once the console is set as a home console, log in with your own separate account to play the game. You will find below the official link to everything you need to know about home sharing in case you were curious about other
aspects of the feature. To set your console as a home console, sign in with your son's account and you can follow the steps provided in the link below on the "Designate an Xbox console as your home console" option.

The link: https://support.xbox.com/en-US/help/hardware-network/console/my-home-xbox

Since you will be needing a separate account for yourself, you will find below the official website to create one.

The link: Microsoft account | Home

I wish you a lovely day, and I hope this helps you out! All the best!

Kind Regards

Stay safe, and happy gaming!

Feel free to give us your feedback by letting me know if the reply was helpful!

You can be signed into both at the same time. you just can't play a game at the same time on both consoles with the same account at the same time.

Does any other game work, or does this happen on them games too?

Nathan

Ok thanks

We are getting a notification on the x box saying two cannot be played on at same time

They play fortnite and want to do duos one upstairs one on downstairs one but it won’t allow them to use x boxes at same time

Hey there, NicholasGiddings

Welcome to the Microsoft Community forums.

Your son will need to make the Xbox One console downstairs as their home Xbox. This will allow other people downstairs use his games without their account being signed in.

This article should help: Designate a home Xbox | Xbox Support

Hope this helps,

Regards,