TOPIC: Kicked Out

It's happened a few times to me. With out warning I've been kicked out. It just happened then. When I quickly go to re-join there has always only been one name still in the game.
This time it was "farmer"
I was playing citybuilder, pop 8000.

Other times I'd been close to winning (this time it was too early in the game).

What is happening?
not happy.

and on my score it has come up as a loss (like the other times), even though the game wasn't finished.