The problem was the use of PPTP networking - https://community.spiceworks.com/topic/2269902-pptp-vpn-setup-on-rras-server-not-working sorted me right out!
VPN over LAN fine ... VPN from external client - hell
Forgive me - I am hopelessly out of my depth but learning fast! My first ever server setup!
I have a Windows Server Essentials 2019 instance running and am able to connect via VPN over LAN no problems.
But when I attempt to PPTP VPN from the Internet my client fails to connect.
Nothing is seen in the Event Viewer (unlike when on LAN) I have installed wire shark and I can see the connection is successfully made....
So I am relatively confident that I am getting past the router - i.e. port 1723 is open and connecting to the server?
Could anyone recommend anything to get this working?
Thanks in advance for help and apologies for my ignorance - will definitely be a PICNIC problem!
Thanks,
Paul