May I ask you all to report it to Asus.I did with the GT-AXE1600 and they have already produced some beta firmware for me to test.I haven't tested yet, as I have only just received it.
Yes.I have tested with two xbox series x.The xbox series x were showing nat type open, without any port forwarding.I also had a problem previously that icmp ping wasn't being responded to, but it is now.
I have factory reset with a pinhole reset today and previous occasions. with two AXE-16000, and although a different router, I have still have exactly the same issue as you.
I have not got anywhere with Asus support, but I have fixed mine.I downgraded the firmware to 3.0.0.6.102_37839.Then performed a factory pinhole reset.Then setup the router from scratch with my desired settings.All worked as it should. then I upgrad...