Compatibility with Surface Pro 3 / Error registering

We are doing a Demo of the Symantec Endpoint Encryption product and I am having trouble getting the software running on a Surface Pro 3.  Most other devices have worked without an issue but this one is getting errors when trying to register the client administrators.  The windows event log is recording the error:  Event ID: 3001, and the details are "Failed to register client administrator "username'. Error -12368.  This error appears for all of the client administrator that I have configured and the Surface will not allow me to encrypt its drive, I presume because of this.

Any help is greatly appreciated.