"Passwords Are Locked" error message when trying to connect Mac to PC printer on same Wifi network
I have been following the Apple instructions to connect my iMac 2019 wirelessly to my Canon printer TR2745 which is connected to my Asus desktop 2015. I have already shared that printer wirelessly to my Lenovo laptop with no problems (all 3 computers are on the same Wifi network).
But on the Mac, I'm getting stuck on one step during the set up. I can choose the PC Workgroup and Name. Then I am prompted to enter "your user name and password for the print server" (i.e. the Asus computer). When I enter these and click Connect I get a warning "Passwords Are Locked" and a prompt to enter my password again. That gives me a screen called "Choose passwords to fill" .... and I don't know what that means. A couple passworded sites are offered to me, but they seem to be irrelevant to what I need.
Can anyone help me with this?
iMac Line (2012 and Later)