I'm not sure how useful this is, but that entry actually means -1 since QV dates start from 01/01/1900. I'm a little confused by your post--are the users having trouble in Analyzer (the IE Plugin) or Open in Server (found in QV Desktop)? What sort of authorization are you using, NTFS or DMS? Are you using the QVWS or IIS? Have you tried to temporarily disable Dynamic CAL Assignment and manually issue the problem users CALs from QEMC (I'm assuming you have Named User CALs in your license)?
Thank you for your reply, I will try to provide more details.
It's the analyzer that won't show the directory listing, and we use NTFS Authorization and QVWS.
I have tried to delete the current assignment and let the dynamic assignment create a "new" User Assignment, but it shows the same result regarding the Last Used time stamp.
I will proceed with trying your tip and disable the dynamic assigment and the add the users manually to the list of User Assignment.
I believe it has to do with that the user does not get the credential correctly for the server, i.e. the server lets him in but wont list the documents as the documents are not allowed for that user according to the DSC.
We solved this problem by asking the users that had this problem to specify their username upon login (use Alternate Identity). In this way the user will get the domain corrected for them.
Thanks for your above information about Dynamic CAL.
But still I am facing the same problem. In log file, record has been created whose 'Authenticated User/Identifying User' is "BLANK/NULL" and 'Document Timestamp' is 1899-12-30 00:00:00.
How can I resolve my issue??
So that, In future no such record will be created in log file.