Online Dynasty - User vs. User help

[Swervekid]

Our dynasty is having a user vs. user connection issue. There are 4 of us in a league. To make it easier lets call them user 1, 2, 3 and 4.

Users 1 & 4 cannot play their game online. They get to dynasty headquarters, one of them invites the other. They both accept their playbook and defense playbook and it says ready ready on their respective screens. Normally this is the time when the game takes them into the onfield loading screen but for them it doesn't. After about 30 seconds the user who made the invite is prompted that he is now waiting for his opponent, and the user that was invited is told the game session is no longer available and is kicked out of the screen.

This is very baffling because user 1 has played users 2 and 3 multiple times online with no issues what so ever, and user 4 has played users 2 and 3 online with no issues. It is just when specifically users 1 and 4 play each other that this occurs.

We both check internet connections and of course we have connection or we wouldn't both be in the dynasty headquarters. We try multiple times trading off who invites and vice a versa but can't seem to make it work. This has happened for 3 seasons now and we have to break down and sim the game when we advance the week.

Please help! This is extremely annoying. I am finally #3 in the country as Temple and would hate to have my chance at a BCS game be ruined by the luck of a draw on a computer sim.

Thank you