Hi Michael,
no - but RDi 9.8 defaults to a secure connection. But after creating the connection you can right click it, and change it there. IIRC it's a checkbox called "Use secure connection" - just uncheck it, and try again.
My company uses a secure VPN, so we also haven't configured secure connections in RDi. And that seems to be pretty normal.
I hope this helps - if you need more details, please ask, I can send you screenshots if you need them.
Kind regards,
Daniel