Hi,
Since Arma1 we did not have any problems, I think after patch 14 or something for Arma1, anyway now with Arma2:OA latest patches installed in the middle of a game someone got in our server with a pass and banned everyone in it even the admin at that moment, we had to reset the server and install everything again in it,
We were quite a few playing, and at first its not funny, after I think we had a better time laughing about it than playing, anyway,
I hope BIS can solve this soon.
bye