I’m not entirely familiar with the Mac OSX, so please bear with me.
I want to use either a VNC Viewer or Remote Desktop to view an external/remote MacBook Pro from a Windows machine.
I started the Vine Server, and have both the internal and external IPs of the machine. Connecting to the machine using the internal IP was a success and working well, but connecting through the external IP was not. Could not get in.
I did not do other additional settings aside from starting the Vine Server.
Are there system settings that I should have tweaked?
The external IP is not the address of your machine – it’s the address of the access point (i.e., the router) that your machine is connected to. The access point is visible to the wider internet – unless you’ve deliberately exposed it, your machine is not. It’s on that box that you need to set up port forwarding to your machine’s local IP/port combination.