So I'm seeing events mentioned above hitting my event logs every two hours with regularity. I do not know how long it has been going on, as the log rolls over, but it is at least 10 days old. My question is, how do I track what is causing this issue? I've checked Scheduled tasks and I don't see anything there. Here are some snippets of the errors: ![86367-event17.jpg][1] ![86402-event23.jpg][2] ![86375-event258.jpg][3] NOTE: The events say "user <canonical name of object" but it is indeed referring to my Exchange server object in AD. This is only happening on one server in a 5 member DAG. Kind of at a loss. EDIT: I'm adding the events as a txt file, but it is really a CSV file. You can download it as such. [88300-errors.txt][4] EDIT2: Adding IIS log with entries correlated to event log entries [88616-iislogforevents17-23-258.txt][5] [1]: /answers/storage/attachments/86367-event17.jpg [2]: /answers/storage/attachments/86402-event23.jpg [3]: /answers/storage/attachments/86375-event258.jpg [4]: /answers/storage/attachments/88300-errors.txt [5]: /answers/storage/attachments/88616-iislogforevents17-23-258.txt