The major disconnect problem I get has to do with challenge rounds that friends send to me. I almost never get disconnected on anything else except for occasional games that I do "restart" on.
The challenge rounds drop out and give me the "Snap" screen 75-80% of the time when I attempt to play them. It's not on my end as nothing on my end drops out except WGT. Further, if I lose connection on my end--I do occasionally when I play at the lake with a flaky router--it tells me I've lost my connection and asks if I want to try to reestablish it.
This gets very aggravating since when it Snaps you out it doesn't report the score and it doesn't give you the 50 experience points for doing the challenge. I've lost thousands of points to this phenomenon now. I don't really care that much about the points since they don't mean much at Legend level but the not reporting causes friends to think you're ignoring them.
There is no screen shot to take as it's just the snap screen rather than the playing screen freezing up. It will let you go back in and resume the game but just doesn't report or credit points.
The problem went away for a month or two but I've only managed to complete one challenge round in the last two weeks without getting snapped out.
Hopefully I'm not just duplicating someone else's post but my search didn't turn up any other posts on this.