Multiplayer Lobby

Hi !

We are currently developing a multiplayer racing game. What we want is the players to connect to a host, and join a lobby, waiting for the lobby to be full or the host to start the game.

Then, when the game start, we want to load a new scene (well, the one where the race is, so we can later add the race selection in the lobby). How should we go to load a new scene and keep everyone connected ?

Thanks for your help.