Having trouble joining my son in a redsec game (same house)

Hi,

we have seperate EA accounts and seperate PC’s. Each time we party and try to join a duos game, only one of us goes through to the game and the other one looks like it’s about to load in but then stays in the lobby.  

Any reason why this is happening or how to fix it please? Very annoying, just trying to play some games with my son. We’ve never experienced this issue with any other multiplayer game.

Thanks