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re: Disable Time Synchronization Monday, November 5, 2007 at 7:13 am Posted by appleoddity (2369 messages posted) You're right...Windows does synchronize it's time with an external server. I think the simplest method to temporarily prevent time synchronization is to block the port that the computer communicates to the internet with to get the information. This should be port 123 UDP. So, use a firewall setting to block outgoing communication destined for this port. Or, you can play with the w32tm utility to adjust your settings and disable time synchronization as described here: http://technet2.microsoft.com/windowsserver/en/library/b43a025f-cce2-4c82-b3ea-3b95d482db3a1033.mspx?mfr=true [Reply or follow-up to this message] Tip: Use one of the [Reply or follow-up to this message] links above to add a message to this thread Search this forum Start a new thread on a different subject Report abuse of the forum Return to the Windows Server 2003 Discussion Forum