Most applications that we typically use for Internet activities use your machine's virtual ports to access the Internet. Many times they do not work properly and because of the location of those ports, but we do not know how to test them and we simply stop using that program and forget it.
Sometimes we need to use that program and we know that a specific port program must be open to properly use. Easy port tester is the application we need to check the status of the port.
And you do not have to rush your brain. Although you have to run only the easy port tester and it will tell you the status of the port though it will not offer the possibility of opening or closing it if you need to work