We have recently started implementing iPrint. I am running it on an
OES2/Linux server with secured printers.

Most of the users have no problems with authenticating to iPrint and it
does this via passthrough authentication when connecting to the network.
I have a couple users, however, who routinely get "Printer
Authentication Failed" messages. Other users can connect successfully
to iPrint from these computers, so I know it is not the computer.

I have checked that the UniqueID attribute is set on the accounts. Any

Client Operating System: Windows XP SP2
iPrint Client Version: 4.24 and 4.34

Thanks in advance,