I find a case destiny2 report general udp type. In my case, my network has two router 1: 192.168.1.1 upnp port 5555 2:192.168.1.7 upnp port 1900 when i open destiny 2 with these two router opening, i find desntiny2 only mapping the second router with upnp port 1900 then maybe stop searching forward , as a result, the main router doesn't receive upnp mapping task, destiny2 report udp type is general When I plug off my second router, open destiny2 again and find the udp type becomes open! So is it possible to design ingame upnp client that can scan all the router device and not only upnp normal port 1900.