hello, this is my first post here. I have a problem that has me pulling my hair out. My xbox one keeps changing its nat to strict. On some rare occasions I can check the detailed connection (pull the triggers after the multiplayer check) and when I back out it will say Open. But sure enough next boot up it reverts back to strict. When my NAT is strict and I do the detailed connection check the NAT status says that I am behind a port-preserving port symmetric nat. Here is a list of things that I have tried
I set a static ip and used DMZ.
I have made sure that UPNP was enabled. ( I even disabled it, rebooted router, re-enabled it and rebooted the router again)
I have set up port forwarding to all the correct ports according to xbox.com
Some more info about my equipment. I have a visionet m405 dsl modem and a cisco wrt-160n v3 router. I have upgraded the routers firmware to dd-wrt firmware. I have the xbox set to energy saving startup. I have an xbox 360 that connects to the network with no issues at all. Anyone have any ideas? thanks ahead of time!