Windows XP Clients are not synchronizing with WSUS
A few days ago I came across a problem, where a client computer which was in a Windows 2k3 SBS domain was not willing to synchronize with WSUS. I found a simple resolution: using the command ‘wuauclt /detectnow’. This step is
actually called “detection”. The term “synchronization” usually implies the communication between the WSUS server and microsoft.com. The updates are then downloaded to the client (automatically).