Hi!
Today my laptop ran out of battery. I could not reconnect with my
nick, because it was still present on the server. Then I reestablished
my internet connection. The nick was still there. I had to log in with
an other nick.
It was still present in an open game, and I think, for that the game
admin could not launch the game.
After about 10 minutes, the name disappeared, and I could reconnect with
my old one.
Maybe the server should check active connections more often, and kick
inactive users.