"You are already in Session" Message

A friend and i are using connect performer se with cubase 8.0.0. Im at the DAW end he’s on w7. We had it working great until i got a message saying about an overload. We then restarted both machines but every time i give him a code at his end it comes up “you are already in session” but he isn’t. Is there a fix for this? thx!!

It should go away after a while (timeout). Would you remember what that overload message was?