Orbi RBR50 connects to Internet but devices don't

Thanks in advance for any community responses and assistance!

Summary:

My Orbi connects to the internet, but devices (both wired and wireless) cannot connect to the internet.  This is NOT a double NAT problem because my modem is a Netgear CM1200 modem only and not a router.

Symptoms:

1. Any device, wired or wireless, can happily connect to the Orbi.
2. No device, wired or wireless, can get through the Orbi to the internet.

Notes:

1. Tracert gets me from any device to the Orbi and dies at the Orbi
2. I have performed a factory reset and new Orbi install multiple times
3. I have reset the modem
4. Orbi firmware has been updated to the latest
5. Orbi admin interface (browser) and orbi app (mobile device) both work fine
   1. Both indicate a good connection to the internet.
   2. Speed test on both indicates 900+ Mbps
6. If I set the Orbi as an access point and use an old router between the Orbi and the modem, internet access is unfettered for all devices.  Reverting back to Orbi as router (and of course removing the old router) returns to the lack of access problem.  Using the Orbi as an AP is not an option because 

   I want to use the Orbi as a router (Parental controls, Armor security and other features are only available as a router.)  Plus I prefer the simpler network topology.

    

     

Again, Thanks for any assistance in advance.