Can't play online games on both xbox's at the same time

Hello, how are you? My name is Mateus. I'm an Independent Advisor and I'll be glad to help you today.

First, welcome to the Xbox community.

Could you tell us what your and your child's nat type is, make sure the nat type is open, moderated, or closed on both consoles, and let us know, please?

To find out your NAT type, follow the instructions below.

Press the Xbox button  to open the guide.

Select Profile & system > Settings > General > Network settings.

Under Current Network Status, the NAT Type field displays your

current NAT type.

I also recommend that you read the article below, there is a mention where it describes what types of problems can happen with multiple consoles in the same network, and also the possible solutions for the problem.

https://support.xbox.com/en-US/help/hardware-ne...

*Thank you in advance for contacting us, it will be a pleasure to help you.

Is it that both accounts can't play online MP at the same time? Or is it they both can't have the game running at all at the same time? Do both accounts have an active XBL subscription?

No they can't. you both can't play the same game at the same time.

Should be alright to game on both at the same time aslong as youre not trying to play online games on both at the same time as it is still the same account unfortunately

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.