You should locate NAT settings in the advanced settings of the router homepage and locate port mapping or port forwarding and click on it. PS4 requires these ports to be open: Port 80 (TCP), Port 443 (TCP), Port 1935 (TCP), Port 3478-3480 (TCP), Port 3478-3479 (UDP).
How to Enable Port Forwarding on my Router and Windows Jun 20, 2017 CentOS / RHEL : How to find if a network port is open or This can be checked using the netstat or ss programs. Checking to see if a port is open, blocked, dropped, or filtered at the firewall is not simple. There are two ways to do this: test the port externally; list the firewall configuration and examine the output; 1. Using netstat to see the listening processes Check port forwarding with netcat – BinaryTides To check port forwarding 2 things are necessary : 1. An application on local computer must open the port and wait for connections. 2. A machine from the outer network/internet must try to connect to this port number via the router. If the connection succeeds then port forwarding is working. Lets take an example. This tool may also be used as a port scanner to scan your network for ports that are commonly forwarded. It is important to note that some ports, such as port 25, are often blocked at the ISP level in an attempt to prevent malicious activity. For more a comprehensive list of TCP and UDP ports, check out this Wikipedia article.
Feb 07, 2012
How to Check Open TCP/IP Ports in Windows
How to open ports in Windows Firewall | Windows Central
CanYouSeeMe.org. This is a free utility for remotely verifying if a port is open or closed. It is useful to users who wish to verify port forwarding and check to see if a server is running or a firewall or ISP is blocking certain ports. Port Forwarding: How to Check Your Router for Open Ports