... in the Orbi-network settings (on iPhone), there is a field to allow "Private Address"... which seems to override the normal iPhone MAC address with a spoofed one. This is on by default. If you turn it OFF, the iPhone will connect to the Orbi network fine.
Netgear - you might consider this a bug. IDK
Storyline
Just got new iPhone 12, brought home, wouldn't connect to Orbi (original RBR50?). Anyway, it would attempt and fail to connect. After getting phone setup using cellular, checked WiFi again, said it connected but there was no internet.
But there was internet - Orbi was up and OK.
After some investigation, I happened upon the newtork info (click circle-i) for the orbi network name in the WiFi Settings. There is an option to, I guess, Spoof your mac address on untrusted networks. It is on by default, it is called, "Private Address" ... turn if off (use the actual MAC address of the device and the iPhone will connect to the network fine.
Not sure how long this has been in the network settings... but, hope this helps.
