Right, im hot off demigod after this just happened to me:

Was playing a Pantheon match, 2v2 when BAM the connection thing pops up. Both my opponents appeared as 'ejected by gaussflayer' to me, with my team-mate on a high ping (270 - 300). Nothing happened for about a minute, then the ping settled (100-120). The weird bit was, my team-mate could chat to me AND the oppenents, yet they could not chat to me or I to them.

Can somebody tell me what happened? and why i didn't re-establish a connection?

We concluded that I should quit (unfortunately it was a close game) and i attempted to do so, but exit did nothing! I ended up quitting with task manager.

Sorry if this issue has been well covered, but i did a few forum searches and found nothing (though i wasn't really sure what to search)