Yes, thank you for checking it out. Suddenly, yesterday evening it started working. I went back and tried again, and voila.
I’ve been having problems with my hosting company, ie the server goes down several times a day, so I never know if the problem is something I’ve done/not done correctly, or if it’s just an overall connection issue. It seems I often spend hours wrestling with things not working, then ping, as if by magic, they work. Frustrating!