Configure the Windows Time Service on a New PDC Emulator

Something to take into account if you are upgrading your AD infrastructure to Windows 2008/R2 and adding a new DC to hold the FSMO roles:

“If you have changed the FSMO roles to another machine please run on the new PDC Emulator:

  • w32tm /config /manualpeerlist:PEERS /syncfromflags:manual /reliable:yes /update

With "PEERS" you can set the time source, either DNS name or an ip address from a reliable time source. Here you can find some of them:

On the old PDC Emulator run:

  • w32tm /config /syncfromflags:domhier /reliable:no /update
  • After that run: net stop w32time and then net start w32time

Original post and more information here and here.

Posted by Gabriel Maciel

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