Thanks Soapandwater in my case your solution resolve my problem on Windows Server 2012 DC. So, I don't need anymore an additional windows 7 guest machine on Hyper-v for ConnectX.
Thanks
I have the same situation with Windows 2008 R2 / Domain server and have try to connect with ConnectX to a shared folder but without any luck.
There is no option to specify the Domain name...
Need help, thanks