Hello. I just recently reinstalled WSUS onto a new 2008 R2 server due to problems with the old server we've had for several years, and I wanted to start from scratch. The WSUS server is up and running, and is successfully synchronizing with Microsoft. After updating the Group policies with the new WSUS intranet server, clients are showing up on the WSUS window. The problem is only 2 out of 100 machines are reporting. the rest are not reporting - in spite of rebooting some of the clients and the WSUS server itself. Not sure why this is.