How to solve the problem with a closed port?

Question

Network administration

I can’t open the port in order to create a game server, I tried everything, tell me what could be the problem with the
static IP, but I don’t pay extra for it, I don’t understand why it’s so, because they usually give a dynamic one, or I have some kind of problem.

Answer 1

forwarded, port closed

Answer 2

Type in cmd and enter:
netsh advfirewall firewall add rule name="Block port 80" dir=in action=block protocol=TCP localport=80