Domain members get their time from the PDC. Where does the PDC get it's time? I'm sorry but the little watch-battery and the CMOS clock don't do it for me. If your battery never gives out, then this might be enough, but I've had batteries give out, and I've had motherboards with clocks that just weren't very accurate. Super-time-sensitive environments and makers might set up hardware that relies on GPS signals or maybe you have a spare cesium atomic clock in your basement.
Microsoft operates an NTP time server at time. Since my servers are in Canada, I use ca. Many colleges and universities offer NTP servers; just make sure, that you are within their published guidelines.
Sometimes, for reasons lost in the depth of antiquity, you may find a server that has the time service disabled or unregistered. So, let's ensure we have a known state:. OK, so I'm told that Windows is "supposed" to automatically find the timezone at install. I've had that happen exactly once. I've given up trying to figure out the magic to make that happen. Use GPOs by site if you span multiple time zones. The w32tm command manages the w32time service. Because some dev at Microsoft said so, that's why.
This command says to configure the time service to use a manual list of peers NTP servers , to use a manual source that we just gave it , to mark itself as "reliable", meaning that it can serve time to others, and to inform the service that the configuration has changed.
I don't know why one would want to update the config but not use the changes However, when setting up the PDC or fixing time issues, I'd rather wait for the call to complete, and then, i restart the service. But wait, you say, that "shouldn't" be necessary. And you're not wrong. It "shouldn't". I've been doing this IT thing for over 30 years. I restart the service. Configuring the domain members is even easier.
Instead of using a manual list of peers, we don't even tell them to use the DC by name. We use the "domhier" flag to sync to the domain hierarchy. This means that if the PDC changes, all is well. I use the exact same script that I do for a domain controller, including the external sources. However, you could, instead, point them to your PDC.
This is a really annoying gotcha. Independent of all this goodness, Hyper-V will attempt to synchronize the Host and the Guests, blissfully ignoring all the hard work you've just done.
In theory, this is a good idea. In practice, I'd rather have my domain members behaving like domain members, and my non-domain members being independent. In the worst case, the two types of synchronization start fighting with each other and Really Bad Things happen to your Windows time-keeping as the clock changes constantly.
Here is what I have tried: 1. Any ideas? Thank you in advance. BrowncoatSGT This person is a verified professional. Verify your account to enable IT peers to see that you are a professional.
Pure Capsaicin. DragonsRule This person is a verified professional. Mike This person is a verified professional. If w32tm is not a service, your commands would not work. Are you sure this R2 server is your NTP server? Run this on the clients and server to find out. This topic has been locked by an administrator and is no longer open for commenting. So your client display is normal. If there are more inquiries on this issue, please feel free to let us know. Rick Tan. TechNet Community Support.
Am I right? I hope I have answered your question. NET TIME synchronizes the computer's clock with that of another computer or domain, or displays the time for a computer or domain. When used without options on a Windows Server domain, it displays the current date and time at the computer designated as the time server for the domain. Please use w32tm. It is good reading for all administrators.
Thank you all very much for your replies. Very helpful. And I will read the recommended articles. Rick, you are saying " When you run net time without option, the workstation will show one time source on the network. Does it pick a specific server or just one at random?
That is might be the root of my question - what is the 'main time server'. Can you clarify? I want to make sure the PDCE is configured as the main time server. This can be beneficial to other community members reading the thread.
A computer uses one of the following methods to identify a time source to synchronize with: If the computer is not a member of a domain, it must be configured to synchronize with a specified time source.
If the computer is a member server or workstation within a domain, by default, it follows the AD DS hierarchy and synchronizes its time with a domain controller in its local domain that is currently running the Windows Time service. So the server is workstation logon DC server based on AD site and subnet which could show via command "set l".
By they way, I have "Alert me' checked and an email address configured but I'm not getting Alerts so I don't always reply as quickly as I'd like. What is you PDCE ipaddress? You can modify this from the command line by using the net time command.
Should it? I just noticed this is Event Viewer. Even though the registry settings above would indicate the PDCe is configured with a time source, I get the following:. Description: The time service has not synchronized the system time for seconds because none of the time service providers provided a usable time stamp. The time service is no longer synchronized and cannot provide the time to other clients or update the system clock. Monitor the system events displayed in the Event Viewer to make sure that a more serious problem does not exist.
NtpServer cannot provide secure signed time to the client and will ignore the request. The error was: Not enough storage is available to process this command. Occassionally the above message also end with "the specified user does not exist" or ". The change is scheduled to be done next week so I'm hoping to get things as much in line as possible before then.
So what are these That means your PDCE is not getting tim from external at all. Secondly, if those I am only at this client on a limited basis so I don't have a lot of details but it is my understanding that those two servers -the I have asked them to verify that UDP port is open. Those two servers are not technically external since they are obviously on the internal LAN but those servers do sync to an external source and are the servers they want to be the time servers for the PDC.
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