Servers lose hour configuration, domain GPO.

RAN55 171 Reputation points


Wen have some problems with some servers that they had the time 3 minutes out of phase. DCs are corrects, they synchronize with a an external source without problems.

I have configured a GPO to force clients to synchronize with DCs with this options:


The crossed out part is our DC PDC.

After a few days i check some servers with w32tm /query /source and some had de PDC as source but other had Local cmos clock. I checked this servers and they had the correct GPO option configuration in

With this servers dont take the PDC as source?


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Accepted answer
  1. Anonymous

    Some general info

    For all problem members beside PDC emulator you can
    w32tm /unregister
    net stop w32time
    w32tm /register
    net start w32time
    w32tm /config /syncfromflags:domhier /update
    net stop w32time
    net start w32time
    then check
    w32tm /query /source
    w32tm /query /configuration

    --please don't forget to upvote and Accept as answer if the reply is helpful--

    1 person found this answer helpful.

2 additional answers

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  1. Anonymous

    Why i put the commands in a .bat file:

    Why are you doing that?

  2. RAN55 171 Reputation points

    I have been checking events and i found the problem. We have two DCs, DC1 have all roles. DC1 take the hour of an external source.

    The most of servers has like time source DC2.

    DC1 have time-service events, 50
    DC2 have time-service events, 24, 50 and 124.

    1 - If the GPO is configured with the DC1 as a time source why the most of servers have DC2 as a time source ?
    2 - Why there are time-service events ? both DCs are in the same vlan. DC1 has no conectivity problems with his external time source.

    Many thanks.