Windows 10 Windows 7 can't sync its time with NTP server running on a Windows 10 PC

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Jorabi1

I am running an NTP server on a Windows 10 PC using the instructions at How to Create a Standalone NTP Server With Windows. The w32tm query output on the server looks correct and shows the server is configured (see below), and the W32time service is running.


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


[Configuration]

EventLogFlags: 2 (Local)
AnnounceFlags: 10 (Local)
TimeJumpAuditOffset: 28800 (Local)
MinPollInterval: 10 (Local)
MaxPollInterval: 15 (Local)
MaxNegPhaseCorrection: 54000 (Local)
MaxPosPhaseCorrection: 54000 (Local)
MaxAllowedPhaseOffset: 1 (Local)
FrequencyCorrectRate: 4 (Local)
PollAdjustFactor: 5 (Local)
LargePhaseOffset: 50000000 (Local)
SpikeWatchPeriod: 900 (Local)
LocalClockDispersion: 10 (Local)
HoldPeriod: 5 (Local)
PhaseCorrectRate: 1 (Local)
UpdateInterval: 360000 (Local)

[TimeProviders]

NtpClient (Local)
DllName: C:\WINDOWS\system32\w32time.dll (Local)
Enabled: 1 (Local)

InputProvider: 1 (Local)
AllowNonstandardModeCombinations: 1 (Local)
ResolvePeerBackoffMinutes: 15 (Local)
ResolvePeerBackoffMaxTimes: 7 (Local)
CompatibilityFlags: 2147483648 (Local)
EventLogFlags: 1 (Local)
LargeSampleSkew: 3 (Local)
SpecialPollInterval: 32768 (Local)
Type: NTP (Local)
NtpServer: pool.ntp.org,0x9 (Local)

NtpServer (Local)
DllName: C:\WINDOWS\system32\w32time.dll (Local)
Enabled: 1 (Local)
InputProvider: 0 (Local)
AllowNonstandardModeCombinations: 1 (Local)

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But I cannot set the time on other PCs using that as the Internet time server, not by name nor ip address. The client can ping the server by name or ip address fine. There are no firewalls involved; the clients and server are connected to the same router. When trying to synchronize, they get "An error occurred while Windows was synchronizing with xxxxx. This operation returned because the timeout period expired." Tried restarting server and service.


Has anyone tried this and gotten it to work?

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