Question Strict NAT after port forwarding, DMZ, etc.


Novice Member
Hey guys, I've recently changed ISPs (from DSL to fiber) and on the first day with the new ISP I had a perfect connection with open NAT on my Xbox One. However, the next day I had strict NAT due to UPnP issues according to the Xbox settings, without changing any settings or even rebooting my router (Apple AirPort Extreme ac).

Since then I've read multiple posts on multiple forums and already tried pretty much everything there is to try: port forwarding, dmz, turning UPnP on and off, the whole nine yards. One thing I noticed is that even after forwarding the correct ports to my Xbox's static IP address, if I run a port scan for that address it shows that no ports are open on the device. Am I missing something?

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