Troubleshooting Event Id 12 source W32time


After run w32tm /resync /nowait in command prompt

C:\>w32tm /resync /nowait
Sending resync command to local computer...
The command completed successfully.

This Error appeared at Event Log.

Event Type:    Warning
Event Source:    W32Time
Event Category:    None
Event ID:    12
Date:        4/4/2012
Time:        11:03:22 AM
User:        N/A

In the description of the error we have this information:

Time Provider NtpClient: This machine is configured to use the domain hierarchy to determine its time source, but it is the PDC emulator for the domain at the root of the forest, so there is no machine above it in the domain hierarchy to use as a time source.  It is recommended that you either configure a reliable time service in the root domain, or manually configure the PDC to synchronize with an external time source.  Otherwise, this machine will  function as the authoritative time source in the domain hierarchy.  If an external  time source is not configured or used for this computer, you may choose to disable  the NtpClient.

Manually configure the PDC to synchronize with an external time source

All the changes in the registry will be made under this Key.

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time 
In  the following registry's sub-keys: \Parameters\Type modify the value data to NTP \Config\AnnounceFlags modify the value data to 5 TimeProviders\NtpServer modify the value data to 1 \Parameters\NtpServer modify the value data to Peers \TimeProviders\NtpClient\SpecialPollInterval modify the value data to TimeInSeconds \Config\MaxPosPhaseCorrection select Decimal in the Base box and modify the value data to TimeInSeconds \Config\MaxNegPhaseCorrection  select Decimal in the Base box and modify the value data to TimeInSeconds

Note:

TimeInSeconds - reasonable value, such as 1 hour (3600) or 30 minutes (1800) Peers - externalntpserver,0x1 or ip,0x1 SpecialPollInterval - A recommended value is 900 

Now we need to restart Windows Time Service, and at the command prompt run

net stop w32time && net start w32time

You can read more about this here http://support.microsoft.com/kb/816042/en-us

Hope that this information can be useful, feel free to rate and comment.

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About rodvars
Been working in IT Services/Consulting for the past 15 years. My main areas of work are planning, development, managing and administration System infrastructures focusing on optimizing user processes, enforcing business security, performance enhancements, high availabilty and infrastucture scalability.

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