Hey, this is what I am trying to do. I can not get it to work for the life of me. I have tried your option here, I have tried all options in the sticky at the top of the forum. Its very possible I may have done something wrong. Those pictures seem to be from a older version of pfsense.
First it started out with NAT type strict on living room xbox. Bedroom box had yet been turned on. I enabled upnp and it solved the problem for a day. Then the living room xbox starts complaining about Strict NAT. I go into the bedroom and that Box is working Just fine.
I rebooted the living room box a few times, disabled and re enabled upnp….Nothing worked. The living room xbox just would not work with upnp and the bedroom box worked 100% of the time.
I ended up Disabling upnp, shutting both boxes off and then clearing all firewall states....rebooted pfsense, re enabled upnp and WALA...Both XBoxes work just fine with UPNP, NAT type "open"..... this lasted 2 days.
Always the living room Xbox is having an issue. The bedroom one works 100% of the time.
Could this issue be pfsense itself? Im running the latest 2.1