Sometimes the updates just get out of control. I'm playing, but for some reason ( game crash, taking a break, etc ) I need to relaunch the game. And guess what, there's an update but the server is not updated. Anyone who leaves ( and nobody checks for update each time they wanna leave ) can not reconnect to the server as the servers are running on different versions.
We should ether be able to launch the game without updating, or the server should have a "compatibility" flag that would allow clients with minor version differences to connect.