Microsoft KB Archive/830092

= In Windows Server 2003 and in Windows XP, W32Time frequently logs Event ID 50, and poor time synchronization occurs =

Article ID: 830092

Article Last Modified on 11/4/2007

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APPLIES TO


 * Microsoft Windows Server 2003, Web Edition
 * Microsoft Windows Server 2003, Standard Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise Edition (32-bit x86)
 * Microsoft Windows Server 2003, Enterprise x64 Edition
 * Microsoft Windows XP Home Edition
 * Microsoft Windows XP Professional
 * Microsoft Windows XP Professional for Itanium-based systems
 * Microsoft Windows XP for Itanium-based Systems Version 2003

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SYMPTOMS
When the Windows Time service (W32Time) synchronizes with an external clock, the following event may frequently appear in the System log:

Event ID: 50

Source: W32time

Type: Warning

The time service detected a time difference of greater than 5000 milliseconds for 900 seconds. The time difference might be caused by synchronization with low-accuracy time sources or by suboptimal network conditions. The time service is no longer synchronized and cannot provide the time to other clients or update the system clock. When a valid time stamp is received from a time service provider, the time service will correct itself.

In the default domain hierarchy, when a Microsoft Windows Server 2003-based child domain controller tries to synchronize the time, you may receive the following event messages:

Event ID: 38

Source: W32time

Type: Information

The time provider NtpClient cannot reach or is currently receiving invalid time data from yourpdc.forestroot.com (ntp.d|65.53.232.135:123->65.53.250.22:123).

Event ID: 47

Source: W32time

Type: Warning

Time Provider NtpClient: No valid response has been received from manually configured peer yourpdc.forestroot.com after eight attempts to contact it. This peer will be discarded as a time source, and NtpClient will attempt to discover a new peer with this DNS name.

Event ID: 29

Source: W32time

Type: Error

The time provider NtpClient is configured to acquire time from one or more time sources. However, none of the sources are currently accessible. No attempt to contact a source will be made for 15 minutes. NtpClient has no source of accurate time.

Note Event ID 29 may also occur on Windows XP-based computers.



Windows XP
A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows XP Service Pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Prerequisites
To apply this hotfix, you must have one of the following installed on the computer:
 * Windows XP Service Pack 1 (SP1)
 * Windows XP Service Pack 2 (SP2)

Restart requirement
You must restart your computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other previously released hotfixes.

File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows XP, Itanium-based versions
  Date         Time   Version        Size     File name     Platform ---  19-Apr-2005  02:51  5.1.2600.1668  437,760  W32time.dll   IA-64 19-Apr-2005 02:54  5.1.2600.1668  166,400  Ww32time.dll  x86 25-Feb-2005 03:50  6.1.22.4       639,712  Updspapi.dll  IA-64

Windows XP, x86-based versions
  Date         Time   Version        Size     File name 19-Apr-2005 02:54  5.1.2600.1668  166,400  W32time.dll 25-Feb-2005 03:53  6.1.22.4       371,936  Updspapi.dll

Service Pack information
To resolve this problem, obtain the latest service pack for Windows Server 2003. For more information, click the following article number to view the article in the Microsoft Knowledge Base:

889100 How to obtain the latest service pack for Windows Server 2003

A supported hotfix is now available from Microsoft. However, this hotfix is intended to correct only the problem that is described in this article. Apply this hotfix only to systems that are experiencing this specific problem. This hotfix might receive additional testing. Therefore, if you are not severely affected by this problem, we recommend that you wait for the next Windows Server 2003 Service Pack that contains this hotfix.

To resolve this problem, submit a request to Microsoft Online Customer Services to obtain the hotfix. To submit an online request to obtain the hotfix, visit the following Microsoft Web site:

http://go.microsoft.com/?linkid=6294451

Note If additional issues occur or any troubleshooting is required, you might have to create a separate service request. The usual support costs will apply to additional support questions and issues that do not qualify for this specific hotfix. To create a separate service request, visit the following Microsoft Web site:

http://support.microsoft.com/contactus/?ws=support

Prerequisites
No prerequisites are required.

Restart requirement
You must restart the computer after you apply this hotfix.

Hotfix replacement information
This hotfix does not replace any other hotfixes.

File information
The English version of this hotfix has the file attributes (or later file attributes) that are listed in the following table. The dates and times for these files are listed in Coordinated Universal Time (UTC). When you view the file information, it is converted to local time. To find the difference between UTC and local time, use the Time Zone tab in the Date and Time item in Control Panel.

Windows Server 2003, Itanium-based versions
  Date         Time   Version       Size     File name --  30-Jan-2004  17:15  5.2.3790.125  554,496  W32time.dll

Windows Server 2003, x86-based versions
  Date         Time   Version       Size     File name --  31-Jan-2004  02:15  5.2.3790.125  221,696  W32time.dll Important Microsoft recommends that you install this hotfix on all Windows Server 2003 domain controllers. Start by installing this hotfix on the primary domain controller that is the operations master in the root directory of the forest. If you experience this problem only on member servers, install the hotfix on domain controllers first and then install the hotfix on the member servers.



STATUS
Microsoft has confirmed that this is a problem in the Microsoft products that are listed in the &quot;Applies to&quot; section. This bug was corrected in Windows Server 2003 Service Pack 1.



MORE INFORMATION
Microsoft recommends that you synchronize the primary domain controller with multiple external Stratum 1 Network Time Protocol (NTP) servers. You should leave all other domain controllers and member servers unchanged. In the default configuration, these servers will synchronize the time with the domain hierarchy.

For additional configuration and deployment suggestions for the Windows Time service in a forest, visit the following Microsoft Web site:

http://technet2.microsoft.com/windowsserver/en/library/a0fcd250-e5f7-41b3-b0e8-240f8236e2101033.mspx

Additional query words: Win2k3 win2003 win2k+3 drift

Keywords: kbbug kbfix kbqfe kbwinserv2003presp1fix kbhotfixserver KB830092

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