It makes no difference since as I wrote I manage the firewall to allow this. But yes, since none of the games on consoles use Steam. If NAT wasn't set up I woul

It makes no difference since as I wrote I manage the firewall to allow this. But yes, since none of the games on consoles use Steam. If NAT wasn't set up I would get NAT type 3 on the PlayStations for example. ETA: My point was to get an example of something that breaks "because it doesn't work without upnp". I have yet to see a game that doesn't support a fixed set of ports.