I am so thankful to have found this post from you, JamesWyper. I had tried EVERYTHING I could think of to correct this spontaneous problem with my printer. I was left totally stumped, without a clue of what to try next. Wasn't my printer. Wasn't my router.
Wasn't my laptop... It was a single Windows Update that caused my printer to just suddenly stop responding to my print jobs!!!! I did need to hard boot my laptop after uninstalling Update # KB4560960 (just letting it restart didn't work).
Thank you so much for taking the time to help others on the matter. You're a lifesaver :)