Enable NTP server service in Windows 10
Use Windows 10 as NTP Server.
Open the command prompt (cmd) as administrator and fire the following commands:
- Enable the NTP server service
net stop W32Time
reg add “HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\W32Time\Config” /v LocalClockDispersion /t REG_DWORD /d 0 /f
reg add “HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Parameters” /v LocalNTP /t REG_DWORD /d 1 /f
reg add “HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\W32Time\TimeProviders\NtpServer” /v Enabled /t REG_DWORD /d 1 /f
reg add “HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\services\W32Time\Config” /v AnnounceFlags /t REG_DWORD /d 5 /f
sc config W32Time start=auto
net start W32Time
2. Check if the NTP server is enabled
w32tm /query /configuration
See in the output the 2nd last line, Enabled: 1 (local) is correct.
NtpServer (Local)
DllName: C:\Windows\system32\w32time.dll (Local)
Enabled: 1 (Local)
InputProvider: 1 (Local)
3. Allow rule in the firewall
netsh advfirewall firewall add rule name=”NTP Server” dir=in protocol=udp localport=123 profile=any enable=yes action=allow
4. Test the service from external system
w32tm /stripchart /computer:192.168.0.10 /samples:4 /dataonly
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