Third Party photon network server address

Hi everyone,

I try to create a video game and I have some difficulties with photon network. I followed some tutorials and arrive to connect my game to network thanks to PhotonNetwork.ConnectUsingSettings(); but I realize that every times a player connect he is alone in the room even if the room name is the same. So I print the server address using PhotonNetwork.ServerAddress and I realize that every player has a different server address. My question is the following how do I get a unique Photon Cloud server address in order that my players can play together ?