Currently, the RDP-Relay option of NPAM 3.2 for accessing Windows servers in different versions (2012, 2008 and 2016) is being implemented, but different problems have been presented, because if the security layer and encyption level options are different to low, RDP_Relay does not work.
There is documentation of how the RDP-Tcp configuration should be and why it should be.

I appreciate the support. regards