unable to sync external NTP server in Ad environment.

N

NizamuddinShaikh1

Hi All,


can someone help me. there is a application in our production environment with multiple nodes in application cluster.

which has full dependency with w32tm service. if any of the server beyond 10sec from it's active node then, the application eliminate it from application cluster.


I have followed following support article still we the peer list is showing my domain controller. it is not desplaying my NTP server: -time.child.root.com


env details:-


The servers all are installed with windows 2008

All are part of Active directory Domain.

all are ESXI Vms not syncing Time from esxi group.





https://support.microsoft.com/en-in...n-authoritative-time-server-in-windows-server


+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++



C:\Windows\system32>w32tm /query /configuration

[Configuration]



EventLogFlags: 2 (Local)

AnnounceFlags: 5 (Local)

TimeJumpAuditOffset: 28800 (Local)

MinPollInterval: 10 (Local)

MaxPollInterval: 15 (Local)

MaxNegPhaseCorrection: 3600 (Local)

MaxPosPhaseCorrection: 3600 (Local)

MaxAllowedPhaseOffset: 300 (Local)



FrequencyCorrectRate: 4 (Local)

PollAdjustFactor: 5 (Local)

LargePhaseOffset: 50000000 (Local)

SpikeWatchPeriod: 900 (Local)

LocalClockDispersion: 10 (Local)

HoldPeriod: 5 (Local)

PhaseCorrectRate: 1 (Local)

UpdateInterval: 30000 (Local)





[TimeProviders]



NtpClient (Local)

DllName: C:\Windows\system32\w32time.dll (Local)

Enabled: 1 (Local)

InputProvider: 1 (Local)

CrossSiteSyncFlags: 2 (Policy)

AllowNonstandardModeCombinations: 1 (Local)

ResolvePeerBackoffMinutes: 15 (Policy)

ResolvePeerBackoffMaxTimes: 7 (Policy)

CompatibilityFlags: 2147483648 (Local)

EventLogFlags: 0 (Policy)

LargeSampleSkew: 3 (Local)

SpecialPollInterval: 3600 (Policy)

Type: NT5DS (Policy)



NtpServer (Local)

DllName: C:\Windows\system32\w32time.dll (Local)

Enabled: 1 (Local)

InputProvider: 0 (Local)

AllowNonstandardModeCombinations: 1 (Local)



VMICTimeProvider (Local)

DllName: C:\Windows\System32\vmictimeprovider.dll (Local)

Enabled: 1 (Local)

InputProvider: 1 (Local)


+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++


C:\Windows\system32>w32tm /query /source

DC21.child.root.com



++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++


C:\Windows\system32>w32tm /query /peers

#Peers: 1

Peer: DC21.child.root.com

State: Active

Time Remaining: 896.3444743s

Mode: 1 (Symmetric Active)

Stratum: 4 (secondary reference - syncd by (S)NTP)

PeerPoll Interval: 17 (out of valid range)

HostPoll Interval: 10 (1024s)




++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++





C:\Windows\system32>w32tm /query /status

Leap Indicator: 0(no warning)

Stratum: 5 (secondary reference - syncd by (S)NTP)

Precision: -6 (15.625ms per tick)

Root Delay: 0.1250000s

Root Dispersion: 8.0002952s

ReferenceId: 0x0A780A15 (source IP: 10.120.10.21)

Last Successful Sync Time: 21/02/2019 12:54:18

Source: DC21.child.root.com

Poll Interval: 10 (1024s)



++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++

C:\Windows\system32>w32tm /config /syncfromflags:manual /manualpeerlist:"0.time.

child.root.com"

The command completed successfully.


+++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++


C:\Windows\system32>w32tm /query /status

Leap Indicator: 0(no warning)

Stratum: 5 (secondary reference - syncd by (S)NTP)

Precision: -6 (15.625ms per tick)

Root Delay: 0.1250000s

Root Dispersion: 8.0002952s

ReferenceId: 0x0A780A15 (source IP: 10.120.10.21)

Last Successful Sync Time: 21/02/2019 12:54:18

Source: DC21.child.root.com

Poll Interval: 10 (1024s)

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