Setup a brand new RBR850 with two satellites this week

Thanks for responding.

When configuring the AP setting, I used a fixed address of 192.168.1.2 and I've confirmed that it is still the one being used (I can see it in my main router table and it's listed as active and as the Orbi).

As for getting to the 192.168.1.2 address, this is from my Mac computer (not the iPhone). I've tried it with both Safari and Chrome. I also connected my Mac directly to the RBR850, turned off WiFi and still could not connect to the admin site. 

I also tried on my Windows 11 laptop using Microsoft Edge and Google Chrome with the same results. So it is not tied to the Apple privacy and security settings around the Private IP and iCloud Relay.

Basically I'm stuck with a fully functional WiFi network but I can't login to administrate it.