Hi,
i don't know if its possible to do this acction. I have found this note in the next link and applies to Windows Server 2008 R2
https://technet.microsoft.com/en-us/library/cc753891.aspx
"To be a member of a farm that uses RD Connection Broker in Windows Server 2008 R2, an RD Session Host server must be running either Windows Server 2008 R2 or Windows Server 2008"
We need to know if this setence i'ts the same for Windows Server 2012R2 RDS?
Thank you so much.