Fortunately, or unfortunately, their tech support is on my side (they have observed the disconnects) and put in a work order to get it done. Called again yesterday and he switched me to their scheduler -- who said "we will schedule it ASAP".
It may not help that their main office is in Wyoming and we are in Colorado.
I'm about to put it on "Nextdoor" with link to my connectivity monitor to see if others might be having the problem. Also may investigate if local companies might try to solve the problem.
Thanks, as always, for your response. I should have entitled this "venting".