Hi Batha,
In DCS:SA 6.6 there are some significant changes that are not really highlighted in the documentation.
In all versions of the documentation I can find, it mentions about a virtual appliance that you can use to control the console of DCS:SA and previous to 6.6 this wasn't a requirement, however now in 6.6 this is required to manage machines. There are a lot of features now missing from the standalone console which must now be managed through the virtual appliance.
I believe your only options are to downgrade or to install the virtual appliance.
Thanks
Sam