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One of our DC keeps changing time and date after windows update

We have a remote sites w/an RODC and its setup for automatic windows update but each time it does this the server resets the time and date causing havoc w/workstation authentication. To fix we would change the date and time to current but I need to know what's causing this.

SOLUTION

QuinnDex

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Ram Balachandran

Check if Windows Time Zone is set correctly from Date and Time Settings
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BelushiLomax

On the RODC, change the following key to point "peers" to the PDC Emulator:

HKEY_LOCAL_MACHINE\SYSTEM\CurrentControlSet\Services\W32Time\Parameters
a. In the right pane, right-click NtpServer, and then click Modify.
b. In Edit Value, type Peers in the Value data box, and then click OK.

ASKER CERTIFIED SOLUTION

Mahesh

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Sandesh Dubey

RODC is physical or virtual server.if it is VM then you need to disable the time sync ffrom host server to VM DC.Checked the GPoi do you have any windows time policy defined if any disable the same.You can also run rsop to check the same.http://msmvps.com/blogs/acefekay/archive/2011/08/23/virtualizing-domain-controllers-and-the-windows-time-service.aspx

Ensure that authorative time server role is configued on PDC role holder server:http://support.microsoft.com/kb/816042.

If still issue persist run below command on RODC this will unregister and register w32time .

net stop w32time
w32tm /unregister
w32tm /register
net start w32time
net time /setsntp:
Net stop w32time & net start w32time
w32tm /config /syncfromflags:domhier /update
W32tm /resync /rediscover
net stop w32time & net start w32time

then run w32tm /monitor to check it syncronising time with PDC.

Hope this helps