https://bugs.kde.org/show_bug.cgi?id=383305
--- Comment #8 from o.freyerm...@googlemail.com --- Hi, it seems you are correct, the CUPS server may also return 403 if the user uses a wrong password (I was pretty sure it would return NOT_AUTHENTICATED or NOT_AUTHORIZED in that case...). Based on that, I have created a very generic fix: https://github.com/KDE/print-manager/pull/2 It works for me against a CUPS-Server with IP whitelist / blacklist (i.e. no endless loop anymore!), and I can still authenticate to a local CUPS as root. -- You are receiving this mail because: You are watching all bug changes.