Dedicated server running only TeamspeakServer and Arma3server.exe.
In january and february all working good with exactly the same configuration over 40 player with custom made mission and CBA_A3 and Task force radio mods.
About over two month server running perfeclty winth 20 player same mission.
Every time increase number of player (for coop event) to 40 player.
Lag increasing, people blocked and server do not respond to admin command.
The same mission running on virtual server works fine.