I have the hybrid connector however when I run the Powershell Script Function ConfigureCRMServerSideSync.ps1 and record all the parameters I end up with an error "Unable to connect to the remote server. Process Failed." However on the same machine I can load the Exchange Online Service EXOPSSession management tool so Azure is certainly connectable.
The platform is Dynamics 365 December Update running on Server 2012R2.