I was trying to join a lot of different servers but always the same.
The ping to the servers I connect is between 15 and 90.
Than i was trying to re-install ArmA III/ Mods / Steam / BE, but nothing happend.
I was checking AV/Firewall, but after the same problem there.
Also I start steam and ArmA as administrator and i clear the gamecache.
I upgrade also win8 to win10 but every time the role assignment is blank.