Verizon Fios

I am going to take a shot here though I don't have Orbi yet for testing. I have FiOs and have used many other routers with FiOs, What I do is create a DMZ on the FiOs router to hang the new router off of, On the new router create a new subnet and connet all your devices to a switch of the new router. Leave the FiOs router inplace to provide services such as STB's/Phone. This works great and I personally like seperating my internal network from the FiOs network.