I'm deep in networking and I've validated that UPnP is broken after the latest update. We have two pcs that play on the same LAN using UPnP. It usually works fine and I'm able to see the port reservations in OPNSense Universal Plug and Play service. Post update, I believe Destiny 2 is sending a malformed request to the UPnP service as the port reservations aren't made and the NAT is set to strict. I validated it is not my configuration by installing miniupnpc client on an Ubuntu Linux machine and sending the following command upnpc -a 192.168.1.XXX 3097 3097 UDP The server responds with the proper port forward. This is the same port forward that Destiny 2 is making. I've also validated in the firewall logs that the UPNP request is being sent from Destiny 2 but I'm not sure of the contents as I haven't done a packet capture. Please fix this as multiple people can't play on the same LAN without it. Thanks