Not sure which of these or both solved it, but...
1 - I had to first hook up OOMA in front of router to get it to initialize for first time.
2 - I moved it behind the router. But then, when I was on the phone, the internet connection would drop.
- a. Changed Setup OOMA>Network back to use built in MAC address
- b. From OOMA>advanced, I added the home port IP 172.27.35.1 to DMZ address. This allows me to access http://setup.ooma.com as http://192.168.1.99 Don't leave it this way if you move OOMA in front of router, as it will expose your network to the internet.
- c. Added OOMA built in MAC address to router as DHCP client and specified IP address outside of range (192.168.1.99)