If users cannot log in to the PaperCut web interface, the administrator should check the PaperCut application log for errors that could be causing the problem. If errors are occurring they should help in understanding why logons are failing.

One common error that occurs on when running PaperCut on Windows systems, is the following error:

This error can be caused because the user logging in was restricted so they could only "Log on to" some machines on the network. If the server running PaperCut was not in that list, then the logon would fail.

To check/fix this:

• Open the "Active Directory Users and Computers" tool
• Select the user that gave you the error, right-click and select Properties.
• Select the "Account" tab.
• Click the "Log On to" button (see below)
• 
• By default all users can Login to all computers. But if you have the "This use can only login to the following computers" option enabled, make sure that the PaperCut server is in the list. It is safe to add the PaperCut server to this list, because you can always restrict local login access to that server using group policy.

Changing this for the users with the problem will resolve the logon issue.

keywords: authentication, invalid username and password

Categories: Errors