Troubleshooting SUS Posted on Monday 23 February 2004Wednesday 23 May 2007 By Mark Wilson This content is 20 years old. I don't routinely update old blog posts as they are only intended to represent a view at a particular point in time. Please be warned that the information here may be out of date.For anyone having difficulty diagnosing issues with Microsoft Software Update Services (SUS), I’ve produced a SUS troubleshooter diagram. In addition, the following resources may be useful: SUSServer.com. SUS statistics report (for analysing IIS logs).