Can't join a friends lobby

It keeps saying that we cannot join eachothers lobby because our game session is still in a game and cannot be joined. We have reset multiple times and ever reset our internet connections.

First time trying to play co-op over Live and I’m having the same problem right now. Came to the forums to see if this was a common problem.

> 2533274817414725;2:
> First time trying to play co-op over Live and I’m having the same problem right now. Came to the forums to see if this was a common problem.

First time I’m having this issue

happened to me just now had to restart the xbox now working fine

I have the same issue im gonna try restarting the xbox aswell

Same issue here, restarted 5+ times, still nothing! Anyone know a fix?