Thank you all for replying. Since this is "The Lounge" I thought I'd share what I discovered.
I use to do level 3 networking support for Big Blue so I deemed myself a network guru. For my home internet, I have a very complex set up. Its wonderful but its more complicated than necessary.
Last night, I could watch videos, do network speed tests, surf the net, etc just fine. But I bumped into three or four "oh wow... that's weird" type of things. One was the Adobe download. Another was a GUI interface for the networking equipment that said my download bandwidth was completely consumed yet my network speed test was about normal. I discovered a particular application (Docker) and when I pulled an image down it would run smoothly up until the last few bytes and then just hang.
I started rebooting things. Rebooted my Mac -- no change. Rebooted the various pieces of my home networking and had no change. My connection to the outside world is a 4G LTE modem that connects to the cellular network. I finally rebooted it and that solved my problem. I've had it now for six months and I use to reboot it first because I always suspected it was the problem but never was. This time, I rebooted it last and it was the problem.
I kicked off "Download All" last night before going to bed and it pumped down all 9 applications in a few hours.