Windows as NTP server

Windows itself offers an NTP server to provide timestamps.

Please note that only one component can use the port for NTP (udp/123). This means that either the TwinCAT NTP server functionality or the Windows NTP server can be used.

The Windows NTP server is disabled by default and can be activated later:

Windows 7 / 10
1. The registry key is set:
HKLM\System\CurrentControlSet\Services\W32Time\TimeProviders\NtpServer
Enabled = 1
Windows as NTP server 1:
2. The Windows Time system service is started and set to Autostart, if appropriate.

Windows as NTP server 2: