@Fiat Lux - ASIA  thank you so much for the realistic and practical steps to hopefully determine the source of the errors. I will try this overnight tonight or tomorrow give it a day or so and advise back. One thing weird from yesterday that I cannot explain... Tuesday is our busiest day in this company database, I had five people in and out all day making changes and not one problem. Typically I have to re-scan the folders several times a day to keep everybody able to access but yesterday zero problems for the first time in weeks. This morning one person had an issue but the others have reported no problems. did a re-scan and that one person go in instantly. QUESTION: what does this mean and how does it happen when one of the users is listed as SearchIndexUser. See screenshot.