Hi
I know it's not recommended to use UPnP because of the security flaws it has. However, I do find it useful to find out what port type and number an video game or application is trying to communicate through to achieve open NAT type etc. I can usually simply look at the LuCI app's Active UPnP Redirects list, but this is remaining empty. Usually a Sony PS4 internet connection test brings up a UPnP redirect but the list still remains empty.
Any ideas?