Question [Screens] Port Forwarding - What am I doing wrong?

There are 3 things you need to get port forwarding to work.

First and most important is you need a public IP. Make sure the ip you see in the port testing tool or a site like whatsmyip is the same IP as you see in the wan on your router.

Second you must have the rules correct and every router seem different. In your case do you need to check that box that says enabled. You might try DMZ it is less complex to configure but in the long term you do not want to open all ports.

Third there must be a program actually active on the port you are testing to send a response