Recently when revisiting an internal SCCM deployment I found that the WSUS integration had stopped working. It tuns out the issue was caused by some changes that had been made to the WebDAV configuration in IIS7 on the server. The changes had been made at the recommendation of Microsoft to fix another issue revolving arround client push installation and seemed to be incompatible with the WSUS required configuration. What follows are my steps to identify the issue and then to temporarily rectify ...