I had a huge issue when our Active Directory crashed many years ago. I believe we were on version 9.x. I tried uninstalling and reinstalling all of Laserfiche and that didn't fix anything. Where we believe the issue centered was in the SQL database. I had tried backing up the database, re-imaging the SQL server but that didn't help either. When we upgraded to 10.x the issue was resolved, but I always suspected it was in the configuration of SQL database. Hopefully you get some less foreboding suggestions on here :) ! !