I migrated from a 2003 server to a 2016 server. After the fact, the client informed me that they were using PPTP to connect remote users. I have gone through the RRAS setup and have installed the necessary role. The server manager says all is running correctly. I am using the same IP address in the 2nd NIC of the new server so I do not have to modify the firewall. This is the same NIC I selected when I setup RRAS, so the binding appears to be correct. When I attempt to connect from a client, I am getting a 807 error code.
How can I confirm the settings on the server to verify the CHAP settings and so on?