Internet time windows 2003

For the Client I have modified the following a Double click the time to open the clock, click change date and time settings , select internet time then change settings and type svr1 ip address in the server field and click the update now button. I get "the peer is unreachable. This was the same result as turning the firewall off, so the firewall path seems to be working. Windows firewall is turned off on both Server machines For Server2 I have set the following: a Set announce flags to a 10 in regedit.

I'm not sure what this should be set to?? This gives me "An error occured while windows was synchronising with This thread is locked. You can follow the question or vote as helpful, but you cannot reply to this thread.

The output of this command displays a list of W32time configuration parameters that are set for the client. Windows Server has improved the time synchronization algorithms to align with RFC specifications.

Therefore, if you want to set the local time client to point to multiple peers, we recommended that you prepare three or more different time servers. If you have only two time servers, you should specify the Ntpserver UseAsFallbackOnly flag 0x2 to de-prioritize one of them. For example, if you want to prioritize ntpserver. Additionally, you can run the following command and read the value of NtpServer in the output:.

In order for W32tm. Then, to adjust the computer clock by using the clock rate, W32tm. This algorithm varies depending on the version of Windows:. MaxAllowedPhaseOffset is configurable in the registry. However, the registry parameter is measured in seconds instead of clock ticks. This command produces output that resembles the following. The output presents the poll interval in both clock ticks and in seconds. The equations use the value measured in seconds the value in parentheses.

The output presents the clock rate in seconds. To see the SystemClockRate value in clock ticks, use the following formula:. For example, if SystemClockRate is 0. For full descriptions of the configurable parameters and their default values, see Config entries later in this article. The following examples show how to apply these calculations for Windows Server R2 and earlier versions. In this case, if you want to set the clock back slowly, you would also have to adjust the values of PhaseCorrectRate or UpdateInterval in the registry to make sure that the equation result is TRUE.

The Windows Time service stores a number of configuration properties as registry entries. It stores configuration information that the policies define in the Windows registry, and then uses those registry entries to configure the registry entries specific to the Windows Time service. As a result, the values defined by Group Policy overwrite any pre-existing values in the Windows Time service section of the registry.

Some of the preset GPO settings differ from the corresponding default Windows Time service registry entries. Windows loads these settings into the policy area of the registry under the following subkey:. Then Windows uses the policy settings to configure the related Windows Time service registry entries under the following subkey:. The following table lists the policies that you can configure for the Windows Time service, and the registry subkeys that those policies affect.

When you remove a Group Policy setting, Windows removes the corresponding entry from the policy area of the registry. This information is provided as a reference for use in troubleshooting and validation. Windows registry keys are used by W32Time to store critical information. Don't change these values.

Modifications to the registry are not validated by the registry editor or by Windows before they are applied. If the registry contains invalid values, Windows may experience unrecoverable errors.

Some of the parameters in the registry are measured in clock ticks and some are measured in seconds. To convert the time from clock ticks to seconds, use these conversion factors:. Note Zero is not a valid value for the FrequencyCorrectRate registry entry.

HoldPeriod All versions Controls the period of time for which spike detection is disabled in order to bring the local clock into synchronization quickly.

A spike is a time sample indicating that time is off a number of seconds, and is usually received after good time samples have been returned consistently. The default value on domain members is 5.

The default value on stand-alone clients and servers is 5. LargePhaseOffset All versions Specifies that a time offset greater than or equal to this value in 10 -7 seconds is considered a spike. A network disruption such as a large amount of traffic might cause a spike. A spike will be ignored unless it persists for a long period of time.

The default value on domain members is The default value on stand-alone clients and servers is It contains reserved data that is used by the Windows operating system, and any changes to this setting can cause unpredictable results. MaxAllowedPhaseOffset All versions Specifies the maximum offset in seconds for which W32Time attempts to adjust the computer clock by using the clock rate. When the offset exceeds this rate, W32Time sets the computer clock directly.

The default value for domain members is The default value for stand-alone clients and servers is 1. The default value for stand-alone clients and servers is MaxNegPhaseCorrection All versions Specifies the largest negative time correction, in seconds, that the service makes.

If the service determines that a change larger than this is required, it logs an event instead. This value means that the service always corrects the time. The default value for domain controllers is , 48 hrs. The default value for stand-alone clients and servers is 54, 15 hrs.

MaxPollInterval All versions Specifies the largest interval, in log2 seconds, allowed for the system polling interval. Note that while a system must poll according to the scheduled interval, a provider can refuse to produce samples when requested to do so. The default value for domain controllers is MaxPosPhaseCorrection All versions Specifies the largest positive time correction in seconds that the service makes. MinPollInterval All versions Specifies the smallest interval, in log base 2 seconds, allowed for the system polling interval.

Note that while a system does not request samples more frequently than this, a provider can produce samples at times other than the scheduled interval. The default value for domain controllers is 6. PhaseCorrectRate All versions Controls the rate at which the phase error is corrected.

Specifying a small value corrects the phase error quickly, but might cause the clock to become unstable. If the value is too large, it takes a longer time to correct the phase error. The default value on domain members is 1. The default value on stand-alone clients and servers is 7.

Note Zero is not a valid value for the PhaseCorrectRate registry entry. PollAdjustFactor All versions Controls the decision to increase or decrease the poll interval for the system. The larger the value, the smaller the amount of error that causes the poll interval to be decreased. RequireSecureTimeSyncRequests Windows 8 and later versions Controls whether or not the DC will respond to time sync requests that use older authentication protocols. If enabled set to 1 , the DC will not respond to requests using such protocols.

This is a boolean setting, and the default value is 0. SpikeWatchPeriod All versions Specifies the amount of time that a suspicious offset must persist before it is accepted as correct in seconds.

The default value on stand-alone clients and workstations is TimeJumpAuditOffset All versions An unsigned integer that indicates the time jump audit threshold, in seconds. If the time service adjusts the local clock by setting the clock directly, and the time correction is more than this value, then the time service logs an audit event.

UpdateInterval All versions Specifies the number of clock ticks between phase correction adjustments. The default value for domain members is 30, The default value for stand-alone clients and servers is , Note Zero is not a valid value for the UpdateInterval registry entry.

The default value on stand-alone clients and servers is 1. The default value on stand-alone clients and servers is 0x1. I suspect the issue might be how this device and the Windows servers are communicating.

I'll have to see what comes of it when I make the changes above, reset everything and try to resync things up. Upon further investigation, I find that this client has a setting in the Default Domain policy to apply sntp settings. I originally looked for this in the default domain controller policy and didn't find it per article KB, then found it in the default policy. So, I will remove those settings and retry syncing the time again.

Unfortunately this client has fairly strong change management requirements so it will probably be a week before I can perform the changes.

Office Office Exchange Server. Not an IT pro? Windows Server TechCenter. Sign in. United States English. Ask a question. Quick access. Search related threads. Remove From My Forums. Answered by:. Archived Forums. Windows Server General Forum. Sign in to vote. Any help is greatly appreciated.

Friday, July 20, PM. Sunday, July 29, AM. Hello Glen, A useful link for your reference to configure time source at your place. Hi Glen, Thank you for the post.

Monday, July 23, AM. I do have another question though Thanks again for your assistance on this. Monday, July 23, PM. Hi Glen, Does it pick a specific server or just one at random?

Tuesday, July 24, AM. Wednesday, July 25, AM. Here it is Windows Registry Editor Version 5. Edited by Glen B. Wednesday, July 25, PM. By default, Windows-based computers use the following hierarchy: All client desktop computers nominate the authenticating domain controller as their in-bound time partner.

All member servers follow the same process that client desktop computers follow. All domain controllers in a domain nominate the primary domain controller PDC operations master as their in-bound time partner.

All PDC operations masters follow the hierarchy of domains in the selection of their in-bound time partner. Thursday, July 26, AM. Thank you again for all your assistance.