NTP server configuration failure

rhinoceros
rhinoceros used Ask the Experts™
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I have followed the steps to assign PDC master for Time Server..

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How to configure an authoritative time server in Windows Server 2003
http://support.microsoft.com/kb/816042

To configure the PDC master without using an external time source, change the announce flag on the PDC master. The PDC master is the server that holds the forest root PDC master role for the domain. This configuration forces the PDC master to announce itself as a reliable time source and uses the built-in complementary metal oxide semiconductor (CMOS) clock. To configure the PDC master by using an internal hardware clock, follow these steps:
Click Start, click Run, type regedit, and then click OK.
Locate and then click the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Config\AnnounceFlags
In the right pane, right-click AnnounceFlags, and then click Modify.
In Edit DWORD Value, type A in the Value data box, and then click OK.
Quit Registry Editor.
At the command prompt, type the following command to restart the Windows Time service, and then press ENTER:
net stop w32time && net start w32time
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- Even I changed the AnnounceFlags DWORD Value "type A", it must show back "a" on DWORD Value field.
- One more, PDC "Windows Time Service" Startup Type is ever back to "Disabled" after server reboot ?


Can help please ? Thanks !

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Top Expert 2010

Commented:
Why would you configure your PDC emulator to not use an external source? Just below the info you posted on how to configure it to not use an external source, MS recommends not doing so (in accordance with RFC 1305 -> "Note The PDC master must not be configured to synchronize with itself. For more information about why the PDC master must not be configured to synchronize with itself, visit the following Web site to view Request For Comment (RFC) 1305: http://www.rfc-editor.org/"). If you still want to configure it as such, my only other suggestion is that you're not logged on as a user with rights to modify the registry (local admin).

Regards,
~coolsport00
>>"Note The PDC master must not be configured to synchronize with itself.
I have not configured PDC synchronize with itself... PDC has installed one 3rd party client software to sync external source in schedullng.

And then all desktops sycn PDC timer when logon (by logon script), I don't know what's wrong for this planning ?

Further, the client desktop always has those error messages
"The NTP server \\server1.domain.com didn't respond"
Top Expert 2010
Commented:
"rhino..", have you seen this KBs?
http://technet.microsoft.com/en-us/library/cc773013(WS.10).aspx
http://support.microsoft.com/kb/816042/

Very good info and may resolve what you're trying to do. Basically, your PCs will get their time from the DC they authenticate against. If that DC is not the 'authoritative time server' (ATS) for the domain, those DCs then in turn get their time from the ATS. With the procedures you wrote above that you've done, yes, you have configured the PDC to sync with itself; unless after you've tried to make those registry changes you've tried using this 3rd party tool. I'm not familiar with a 3rd party tool for time synchronization, and not sure why you want to use it. NTP setup in Windows is non-abtrusive, and easy to setup/manage. Is there a reason you're wanting to use a 3rd party tool for time synch?

My recommendation to you is to follow the 2nd article I provided to configure time synchronization within your domain.

Regards,
~coolsport00
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>>"rhino..", have you seen this KBs?
>>http://technet.microsoft.com/en-us/library/cc773013(WS.10).aspx
>>http://support.microsoft.com/kb/816042/

Thanks ! It's good ! I will try it...

But my question is came from "http://support.microsoft.com/kb/816042" ???
- Even I changed the AnnounceFlags DWORD Value "type A", it must show back "a" on DWORD Value field.
- One more, PDC "Windows Time Service" Startup Type is ever back to "Disabled" after server reboot ?

Any further idea please ?
Top Expert 2010

Commented:
Again, with my initial post, if you're modifying the registry, and the changes you made don't "stick", then it seems the account you're using to modifying the registry doesn't have rights to do so. That's my only guess on that.

~coolsport00
Great ! I have successfully re-configured time sync for the whole domain (included the PDC master and all users' desktop). Finally, I also uninstalled a 3rd party tool.

Thanks !
Top Expert 2010

Commented:
Glad you got it working...

Regards,
~coolsport00

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