What you could try is to edit the URIs in the /etc/cups/printers.conf file. Stop CUPS, edit the file and after that start CUPS.
You have to edit the URIs adding "<USER>@" before the host name.
Turn
ipp://cups.ncs.mcgill.ca:631/printers/mcgill_mono
into
ipp://<email address hidden>:631/printers/mcgill_mono
Does this work for you?
What you could try is to edit the URIs in the /etc/cups/ printers. conf file. Stop CUPS, edit the file and after that start CUPS.
You have to edit the URIs adding "<USER>@" before the host name.
Turn
ipp://cups. ncs.mcgill. ca:631/ printers/ mcgill_ mono
into
ipp://<email address hidden> :631/printers/ mcgill_ mono
Does this work for you?