Yes it won't allow you to remove all the printers in the list. When I told it to add printer, I selected "Auto" and it immediately showed it to me, albiet with a different name, and when the new entry was added I was then able to delete the old entr...
I had the same issue and after calling Canon support and walking through it the tech found the issue. My ISP swapped out my router a few weeks ago and the IP address space on my network changed. PPL was still trying to send using the old IP address...
