Beta clan server

Hi...when i and member of my clan enter in Beta clan server ch1 , ch2 , ch3 . ch4 ,ch5 etc compare a error "Disconnected from server" and exit to the game.
Im a leader of ArmyOfItaly...
I watch another player play in beta clan server....[ITA]FoRcE , dIABOLIKA and another clan why my clan can't acces to the Beta clan server?
How to resolve?
We can't enter in beta because we are too strong?????:D
I wait Answers Bye Bye