Sync clock on Windows XP machine to external (non-domain, non-workgroup) Windows Server 2008 R2 machine

Posted by Eric on Server Fault See other posts from Server Fault or by Eric
Published on 2012-11-19T18:29:16Z Indexed on 2012/11/19 23:06 UTC
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I have two machines and I'd like their clocks to be in sync for various reasons. Machine 1 is an XP machine located in the office. Machine 2 is a VPS hosted by a third party running Windows Server 2008 R2. These machines are not in any kind of workgroup or on a domain together. They are completely separate machines.

Machine 2 is currently syncing once a week to time.windows.com. The clock on Machine 2 does seem to wander a bit within that week interval. What I would like to do is have Machine 1 set its clock based on the clock of Machine 2.

I have tried configuring w32tm on the XP machine. This is what I used for configuration:

w32tm /config /syncfromflags:manual /manualpeerlist:"<ip address of machine 2>"

However, whenever I issue the /resync command I get "The computer did not resync because no time data was available". I have made sure to start the windows time service on machine 2, and I have added firewall exceptions for UDP port 123.

Is there something I need to configure on Machine 2 (other than just starting the time service) in order to get it to respond?

Edit: I have also run w32tm /config /reliable:YES /update on Machine 2. I am still getting "The computer did not resync because no time data was available". Is there something else I'm missing?

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