We are using the WSUS 3.0 services to push all of Microsoft updates out the over 300 clients on our network. For the past several months, the application worked beautifully. However, for the past several weeks I have noticed that many of the clients are not receiving their approved updates. I have checked all of the clients that are working correctly with the clientdiag.exe and noticed that the registry setting for the Windows Update are missing. I stopped the Automatic Update services re-inserted the correct setting back into the registry, re-started the Automatic Update services, and waited. After several hours I check the clients again and saw that the registry setting are once again missing. Since I am the Network Admin, I know that I have the correct permissions to adjust the client?s registry. I checked the Group Policy on my (3) 2003 Active Directory machines are set according to Microsoft specs. 90% of the client machines are receiving the updates. I was wondering if anyone would be able to help me identify or resolve this issue.