We have the same problem with RDC 2.1.1 / Any OS 10.x / Windows Server 2012 RDS Farm.

We have the same problem with RDC 2.1.1 / Any OS 10.x / Windows Server 2012 RDS Farm.

Farm properties

Security layer: RDP Security Layer
Encryption level:  Client Compatible

Works fine with an Windows RDP
But getting the  Remote Desktop cannot verify the identity of the computer you want to connect to using RDC 2.1.1 

Even tried using  the RDC client 2.1.2 

Using CoRD works fine but we like to keep using MAC Remote Desktop Client (because it works fine with our 2008 RDS farm)

Any suggestions?

Thanks,