Also you cant DMZ and port forward at same time, I would say it would be a good idea to have your gateway "reset" to default settings and just do straight port forwarding
No way man, I have tried everything and i do mean EVERYTHING concievable. Nat filter (non existent but if it did it would probably rectify the issue) , upnp (the CGN3's is not very good) , DMZ, port forwarding /triggering, hardwired/wireless, SIP A...
