Installing DUO on Server 2016 with SSTP

Hallo Everyone,

While searching for information on getting DUO to work with SSTP I have read several threads on here from users having problems with the above configuration. So my question is, does DUO work ‘out of the box’ with SSTP or will it need custom tweaking to get it to work properly.

Our situation:
We are running Server 2016 as a VM. We have 6 (will later become max 10) users who use a VPN connection to connect from home to the server. They then use RDP through the VPN tunnel.

Thanks in advance for your time.