Hi Mark,

Thank you for your detail information.

According to previous troubleshooting, we know the w32tm service works
fine. Given the situation, I suggest we confirm the following points at
this time:

1. Confirm Time Zone. Incorrect Time Zone setting in registry may cause
sync problem. Please try to change Time Zone to another location and change
it back.
2. Enable netmon to capture network packets on the computer. The reason why
we doing it is to check if Windows receives response from time.windows.com.

1) Download NetMon3.3 from the following website and install it on the
computer
[url]http://www.microsoft.com/downloads/details.aspx?displaylang=en&FamilyID=983b[/url]
941d-06cb-4658-b7f6-3088333d062f
2) Launch NetMon3.3.
3) In the Microsoft Network Monitor 3.3 window, click Create a new capture
tab ¡*
4) In the new tab, select all the Network Adapters in the Select Networks
window.
5) Go to sync time page. Then, switch to Network Monitor, press F5 to start
NetMon.
6) Try to sync time.
7) Go back to the NetMon window and press F7 to stop the NetMon.
8) Press Ctrl+S to save the Netmon file named test.

Please upload the file to Windows Live SkyDrive
([url]http://www.skydrive.live.com/[/url]) and share the URL with us.

Thank you for your cooperation. I am looking forward to your reply.

Thanks.

Best regards,

Robinson Zhang
Microsoft Online Support