@Byron1234 Unfortunately I have a device that has been configured to work only with port 65535, that's why I want to open it. Why instruction says I can set between 1-65535 but either single 1 or...

I am trying to open the single port 65535 but I get "Error code: 4936 Invalid port number! Please input another one(1-65535)." Even if I try ANY range including 65535 or 1, it does not work. It only...