said by BoulderHill1:Can you try another different router? Not one supplied by verizon?
I thought it might be the router so I was able to persuade Verizon to send me a newer one (same model but different firmware). I'm getting 20+ Mbps throughput elsewhere on the internet and HDX quality from Vudo. It's only Netflix. The only thing left to do that I can think of is to connect my laptop to a friend's network who also has FIOS in my neighborhood and see what kind of quality I'm getting.