Yes I experienced this sort of happenings whenever II found my big opponent going to lay down the server trouble comes in: disconnected.
In your case server trouble came in with temporary disconnect exhausting your time to move. Time was over and opponent won. Not your fault !!
I've played a lot and have not experienced the following until today:
The game starts, we both make our initial moves but when I'm making my second or third move my opponent stops playing. And after a while the system tells me game abandoned and my opponent won!!!
That's happened to me four or five times today. Anyone experienced something similar?