I have been playing Minecraft on my PC with my friends on our own server for a few weeks now. I also purchased the game for my son on his Nintendo Switch so that he may play with us because of the cross-play. Every time he tries to log into any multiplayer world including ours he is immediately kicked. The main reason I started playing this game again was to enjoy it with my son and we have yet to be able to play it together. Please help me resolve this issue.