My question is practically identical to the one found here. In short, I have a samba printing server with CUPS as the backend support on a raspberry pi. I have configured CUPS to require basic authentication from a valid-user. I can access my printing server from a Linux computer and authenticate with no issues, but my windows 10 computer doesn't prompt any authentication when I add the printer, regardless of how I try to add it. Instead, I get a "windows couldn't connect to the printer" error message. I've tried doing all of these ways but nothing works:
The windows computer can print fine when authentication isn't required, so the connection between the computer and the printer doesn't seem to be the issue. Has anyone experienced anything like this, or have any suggestions as to how I can authenticate? Am I missing something obvious?