Still no recurrence since Friday. I'm guessing that an issue not communicated (possibly to Cox from 3rd party?) has been resolved surreptitiously. It serves little purpose to not at least give a heads-up when there's a problem so that customers and Cox tech support don't get embroiled in needless troubleshooting procedures that will accomplish little outside further straining the tenuous relationship that paying customers have with Cox...
Addendum:
The list of tags that Cox furnishes us for these discussions is... interesting.