Moving time source to another DC

I have one Windows 2003 SP2 DC and 4 Windows 2008R2 DC’s. The 2003 DC (call it OLDDC) had all 5 FSMO roles, and it was also the time source for our single-Domain Forest.
It was set to sync up with a Linux server (IP address 192.168.1.100) in our environment that syncs up with an external time source.
I moved all of the FSMO roles to one of the 2008R2 DC’s (call it PRIMEDC), then I ran the following on PRIMEDC to make it the time source for the Forest:
w32tm /config /manualpeerlist:192.168.1.100 /syncfromflags:manual /reliable:yes /update
net stop w32time
net start w32time
I then ran the following commands on OLDDC:
w32tm /config /syncfromflags:domhier /reliable:no /update
net stop w32time
net start w32time
I then checked the registry on these 2 servers. On PRIMEDC, the setting for HKLM\SYSTEM\CurrentControlSet\services\W32Time\Parameters\NtpServer was changed to 192.168.1.100, but there was no tag (0x8, 0x9, or 0x1) associated to it.
This setting on OLDDC had been “192.168.1.100,0x8”.
The setting for HKLM\SYSTEM\CurrentControlSet\services\W32Time\Parameters\Type was successfully changed from NT5DS to NTP.
On OLDDC, the setting for HKLM\SYSTEM\CurrentControlSet\services\W32Time\Parameters\Type was successfully changed from NTP to NT5DS, but the setting for HKLM\SYSTEM\CurrentControlSet\services\W32Time\Parameters\NtpServer was NOT changed, and remains at “192.168.1.100,0x8”.
Do I need to manually add the tag “0x8” to the NtpServer key on PRIMEDC?
Also, does the setting for the NtpServer key on OLDDC matter since the type key is set to NT5DS, or should I manually change it as well?
Thank you very much for your help.

Hi Logan,
As you are using linux machine as a NTP server, Some NTP servers that do not run Windows respond only to requests that use client
mode.
Try the below command to set it in client mode:
w32tm /config /manualpeerlist:NTP_server_IP_Address,0x8
/syncfromflags:manual /reliable:yes /update
The mode that Windows Time uses to send requests is set by the following registry subkey:
HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\TimeProviders\NtpServer
If the value of the Enabled entry in this subkey is 1, Windows Time uses symmetric active mode. Otherwise, Windows Time uses client mode.
The 0x8 setting that is referenced in the command in the "Resolution" section sets Windows Time to use client mode.
The valid settings for the mode used with the /manualpeerlist switch
include the following:
0x01 - use special poll interval SpecialInterval
0x02 - UseAsFallbackOnly
0x04 - send request as SymmetricActive mode
0x08 - send request as Client mode
Source:
Time synchronization may not succeed when you try to synchronize with a non-Windows NTP server in Windows Server 2003
http://support.microsoft.com/kb/875424
Regards,
Rafic
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