I have a GT-AX11000, most of my wired and wireless devices connect properly (Xbox Series X, laptops, PCs, smart phones, security cameras, and tablets). I had to change some settings for all three bands to get my Xbox One and PS4 to connect wirelessly on the 5G-2 band and the Xbox 360 on the 2.4 band. The PS4 and 360 would not connect through wired connection. Had DNS and NAT issues. I set the NAT to full cone and I am using the OpenDNS servers on the router for content filtering. All my devices worked great on my previous Netgear Nighthawk router, until a forced firmware update kept dropping my internet connection once a day. So, the issue is not the OpenDNS servers. The PS3 still can't connect through wired or wireless (2.4), I keep getting a PS3 error code (80710102, which is DNS) and a I have Roku Express that can't connect to the 2,4 band either.
Any ideas?