Well… it worked. I was skeptical as I had tried all these things but it appears that order matters. THANK YOU for posting this solution. My system had been working fine for years and just stopped a couple days ago. It had done this once in the past but a power reset (unplug from wall) solved the problem that time. Again, thank you for posting the solution - would really like to understand why this procedure works - what is set that gets reset and makes it work again.