How to Adjust Frequency Client Syncs With an NTP Server in XP
Windows XP includes an NTP, or network time protocol, client. The NTP client service checks an NTP server over the Internet to ensure that the local computer's clock is set to the correct time. NTP settings are normally configured from the Internet Time tab in the Adjust Date/Time window, but it doesn't include advanced settings such as adjusting the frequency of the NTP time synchronization. Windows XP syncs with an Internet time server once a week by default. You can set a different frequency by editing the Windows registry.
Instructions
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Click "Start" and "Run."
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Type "Regedit" into the Run dialog window and press "Enter."
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Navigate to the "HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\TimeProviders\NtpClient" key by clicking the plus sign to the left of each key in the left sidebar.
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Double-click the "SpecialPollInterval" setting in the right pane of the Registry Editor window.
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Type a frequency in seconds into the "Value Data" box and click "OK." The default value is 604,800 seconds, exactly seven days.
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Close the Registry Editor window by clicking "File" and "Exit."
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Click "Start," "All Programs," "Accessories" and "Command Prompt."
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Restart the NTP client service by typing "net stop w32time && net start w32time" into the command prompt window and pressing "Enter."
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