Hi,
 
I experienced the following twice in different projects concerning the time synchronisation when adding WXP computers to a domain. In both projects the clients were rolled out using images. The client in the image was configured in a workgroup and added to a domain using sysprep. In both organisations the following policy existed:
* the xp client must not have automatic connections with external networks (e.g. the internet) (this applies to several update mechanism in xp AND the time sync option in "Control Panel -> Date and Time -> Internet Time -> Automatically sync time with a internet time server" Concerning the last option it was disabled by unchecking the option.
 
By unchecking this option one of the following happend:
* When joining the xp client to AD the client could not be added because of the time skew (more than 5 minutes) (An XP client automatically syncs the time when it is joined to a domain) Adjusting the time manually as local admin solved the problem and the client could be added to the domain
* the client joined the domain and after the reboot no one could log on to it because of the time skew (more than 5 minutes) and policies were also not applied. Adjusting the time manually as local admin solved the problem and the client could be added to the domain
 
By the way: when checking to see if the time on a client (using the systemtray) is OK also check for the correct date!
 
In both situations the problems were solved by NOT UNCHECKING the option "Control Panel -> Date and Time -> Internet Time -> Automatically sync time with a internet time server".
The first time I encountered this I checked what the option did and to me it seemed that it had not impact on the client when it was joined to a domain.  The opposite was true as you can read above. So my advise: do not uncheck the option "Control Panel -> Date and Time -> Internet Time -> Automatically sync time with a internet time server" Leave the default configured.
 
The client switches to a domain controller as a time provider when it is added to a domain
 
Regards,
Jorge


From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Free, Bob
Sent: Thursday, February 19, 2004 22:32
To: [EMAIL PROTECTED]
Subject: RE: [ActiveDir] Windows XP time sync

Some of the MVP folks in the XP NG's alluded to other manufacturers as well but since Dell substantiated it by providing a patch, I figured that must be the real deal :-)


From: DeGrands, Charles [mailto:[EMAIL PROTECTED]
Sent: Thursday, February 19, 2004 12:58 PM
To: [EMAIL PROTECTED]
Subject: RE: [ActiveDir] Windows XP time sync

After reading this thread, I checked my recently purchased HP Evo and it too had the time pointed to Microsoft.  So it’s not hardware specific.   

 


From: Rich Milburn [mailto:[EMAIL PROTECTED]
Sent: Thursday, February 19, 2004 12:29 PM
To: [EMAIL PROTECTED]
Subject: RE: [ActiveDir] Windows XP time sync

 

Bob, you’re a genius! J  Yes they are Dells, and not by chance… and it’s not all of the Dells.  One of my concerns here was fixing the problem without knowing the cause.  I don’t mind running a script, and these commands work remotely, as long as we know how to avoid it in the future.  I agree with Joe about fixing an automatic process instead of making it manual when it doesn’t work.

 

I’ll look into this.  They are Dell OptiPlex GX270s I think, small profile mini-desktops, P4 2.4 I think.

 

Rich

 


From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Free, Bob
Sent: Thursday, February 19, 2004 2:16 PM
To: [EMAIL PROTECTED]
Subject: RE: [ActiveDir] Windows XP time sync

 

Yes, they are supposed to automagically change to NT5DS upon joining a domain from  all the MS documentation. 

 

 Is it happening to all of them? Are they Dell PC's by chance? They actually have a patch because, allegedly, some PCs were imaged with different processor stepping levels than ended up in the final product which throws w23time for a loop.   The XP NG's are full of the complaint.

 

Apparently the patch is just a batch file to re-register the service correctly. A MS KB is (allegedly) forthcoming :-)

 

 net stop w32time
 w32tm /unregister [ignore error message]
 w32tm /unregister [repeated  because of the error above]
 w32tm /register
 net start w32time

 

 


From: Rich Milburn [mailto:[EMAIL PROTECTED]
Sent: Wednesday, February 18, 2004 3:42 PM
To: [EMAIL PROTECTED]
Subject: RE: [ActiveDir] Windows XP time sync

Okay the MS consultant who worked on our AD upgrade answered that adding an XP computer to a domain should set the time to sync using NT5DS, which is what I thought I remembered was supposed to happen.  But it’s not happening.  If I run the w32tm commands and the setsntp: then it fixes the registry settings to use NT5DS.  Anyone know why we might be seeing this issue, or know more about this?

 

Thanks –

Rich

 


From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Byrd, Todd
Sent: Wednesday, February 18, 2004 9:33 AM
To: [EMAIL PROTECTED]
Subject: RE: [ActiveDir] Windows XP time sync

 

The servers in a domain will automatically update from each other, progressing upward toward the root PDC (ie each server in a child domain will sync with the child domain PDC by default, and the child PDC will sync with the root PDC, while all servers in the root domain will sync with the root PDC….. ) the Root domain PDC should be allowed to sync with an outside SNTP server…. For the workstations, the time server needs to be mandated through a GPO, or through DHCP….

 

 

The GPO for setting a specific time server  is set under Computer Configuration > Admin templates > windows components > system > windows time service > time providers

 

 

 

Hope this helps…

 

Todd

 


From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED] On Behalf Of Rich Milburn
Sent: Wednesday, February 18, 2004 10:09 AM
To: [EMAIL PROTECTED]
Subject: [ActiveDir] Windows XP time sync

 

I’ve seen it talked about on this list that time should be sync’d automatically in a domain.  I was going along checking the SMS logs and found a number of them that said the computers’ time was offset.  I thought that was odd, and I looked into it.  The XP computers are set to time.windows.com when you do a net time /querysntp on them.  If they are actually trying to use that, it’s a problem because SNTP is not allowed out.  Besides, we want them getting their time from the domain, not MS.  So I can run a command against them to clear this (/setsntp: ) and I can run w32tm /config /computer:name /update /syncfromflags:domhier and it works – the time gets sync’d.  I looked into the issue further though, and see that all the XP computers are set like that.  This does not seem like what we want, so what am I missing here?  Do we have to set this up in the login script or is there a setting I missed in GP that fixes it or ??  I assumed joining a computer to a domain would fix this issue (never really paid attention to it before) but apparently it doesn’t.

 

Thanks

Rich

 

 

 

 

 

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