We currently have a SharePoint Site in Production. We are using a third party monitoring solution that pretty much logs into the SharePoint site every minute to check if its up. The monitoring software has a user account on the site that it uses to log into
the SharePoint site to check status.
Recently every morning at 3:30am we are getting paged out that the SharePoitn site is not avaible for 3 minutes. Looking into the IIS logs i find the following entry during the specified time:
401 Unauthorized (client err)
I really cant find any reason why the Site is not available for login. Nothing in the event logs to indicate a problem.
Any idea what can be done to determine the root cause of this..
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