Hi. I'm David, and I'm happy to help you.
To be able to assist you better, please clarify the following:
- What is the exact game you are trying to play?
- Where did you download the game from (Microsoft Store/Xbox App, Steam, Epic Games, a dedicated launcher)?
- Does an error code or specific message appear when you try to join servers?
- Is your account managed by an adult through Microsoft Family Safety?
Looking forward to your reply.