Minecraft Pe leave bug?

My friend tries to join my world, but whenever he tries, BigMagSchmoothr has left the game (my friend is called that). We have already tried that he comes to my xbox live party, I invited him into the world via the pause menu, or via the xbox app. We both play windows 10 64 bit on the pc.

And what does it say?

It always takes a long time for him to go out again on his own (up to 30 minutes of charging), then the connection is disconnected

I see.

If it only says "Connection disconnected", then unfortunately I can't help.

For me it was always the internet.