Event 1925 On New DC

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After joining our new Server2012r2 VM to the domain I let it replicate for a couple days. I then found an issue with Windows Time:

To Resolve:

  1. As standard practice, I opened Event Viewer => Custom => Server Roles => AD DS => and looked for errors. There were multiple “Event 1925” logged and it showed to be happening between one of the member DC’s and my newly joined DC. MS Support site gave basic troubleshooting, but it didn’t really help at all.

  2. run => cmd => repadmin /showrepl /errorsonly. This revealed something about the time being off between DC’s.

  3. On the PDC Emulator, run => cmd => w32tm /query /status. Here you take note of the IP address of your time source.

  4. On the PDC Emulator, run => cmd => w32tm /config /manualpeerlist:timeserver /syncfromflags:manual /reliable:yes /update

    • Where timeserver is a space delimited list of your time source servers
  5. On the PDC Emulator, run => cmd => net stop w32time && net start w32time

  6. On each member DC, run => cmd => w32tm /config /syncfromflags:domhier /update

  7. On each member DC, run => cmd => net stop w32time && net start w32time

  8. This worked great on the other DC’s, but my newly joined DC kept reverting the time. I researched this a little bit and found:

    • Open up Hyper-V Manager => Navigate to the VM => Right Click => Settings => Integration Services => Uncheck “Time Synchronization”.

    NOTE: I did the default install of Windows Server 2012r2 and I don’t recall there being an option to configure your local time in the install (I might have breezed by it), but it was set to Pacific by default and I am in the Central Time Zone. So I manually set the host and all of it’s VM’s to the correct time after this.

  9. Manually set the DC to the correct time zone/time and it will work from here on out.