OOPs my bad - I can download from my phone when it’s not connected to my network. So the problem appears to be on my side. . . (but why only one site when the rest of the internet is up? That’s going to be a head scratcher.)
I could get to virtualmin.com and most of the internet best as I could tell. It was just software.virtualmin.com that was the problem. The problem was resolved when I rebooted my pfsense router. It had been up for 200+ days and wasn’t able to route to the software.virtualmin.com site.