Have you been through the manual/explanation on the top post on this thread?
Basically you need to get the three first port leds to turn green when clicking “Test Port Accessibility”.
To get that to work, means doing port forwarding on the router, making sure your firewall and antivirus to not block access, and of course an ISP that allows for port forwarding.
There is no video, but that probably not a bad idea at this point.