Our team had some issue in Traverse City, I didn't watch enough matches to draw many conclusions; but I saw during the finals our side had issues a number of times, our drive team said that the team in the Red #3 station would drop from the FMS (the volunteers tend to cast that stuff aside in our experience, I'm unsure if they reported it, or assumed they wouldn't care and did not report it)
From their reports it was not "media disconnected" from windows, but the "FMS not connected" on the driver station, the robot was not off.
Here's a video showing the issue in our second match of the finals (watch the middle robot on red)
https://www.youtube.com/watch?v=457aHSYmFtU