w32tm /debug /disable w32tm /unregister [Reboot] w32tm /register sc qtriggerinfo w32time [SC] QueryServiceConfig2 ERFOLG DIENSTNAME: "w32time" DIENST STARTEN DOMÄNENBEITRITTSSTATUS : "1ce20aba-9851-4421-9430-1ddeb766e809" [DOMÄNE BEIGETRETEN]
These are the possible reasons that routers are not able to sync with the public time servers: High offset and more between the server and the router
So I installed NTP and hoped that it would magically fix up the issue, but it turns out that NTP by itself is absolutely unhelpful not only in cases of big offset, but also in cases of big drift – it will fix your clock when it is slightly inaccurate, but not when it is inaccurate a lot.
NTP: Windows after reboot
Windows Server 2008 R2 SP1 – How to Sync Time from External Time Source?
Configuring Time in Windows 7 and Win 2008 R2
Windows Time Service Tools and Settings
Fixing NTP Refusing to Sync
Ntpd excessively inaccurate
How To Synchronize Microsoft Windows to a NTP Server