The problem is somehow being caused by the wi-fi connection. I had some success by turning off my router to regain control of the printer, then did a factory default reset using the panel buttons following the instructions in the online manual. This ...
I followed the suggestion to first turn off my router. This allowed me to regain control of the printer which I disconnected from wi-fi using the printer’s panel buttons. I now have the ability to print via USB from my desktop, but no air-printer abi...