Problem began after upgrading to NW6.5 SP8. Running Iprint client 5.12 Problem also with older Iprint clients. Win XP sp3 Novlell client 4.91 sp 5.

No secure printers installed all users have uninque ID Attribute.

When a user tries to cancel one of their print jobs they are prompted for Iprint authentication and all attempts to login fail. They can no longer print to this printer until they either log off and on or reinstall iprint client.

Prior to upgrade we were using the 4.11 Iprint client have not tested to see if it displays same issue. I have seen lot of post with similar issues but not a permanent solution.