Windows vm time drift

I rebooted the host for updates, and when everything came back up, every VM had the correct time, except the DC. It was of by about 8 minutes the insane amount of time it takes a Dell server to boot up. Seriously, why is keeping time on MS products so critical and so difficult a the same time? What am I missing? To continue this discussion, please ask a new question. Which of the following retains the information it's storing when the system power is turned off?

Submit ». Get answers from your peers along with millions of IT pros who visit Spiceworks. Employees were having issues getting logged into the RDP server. I quickly found that the DC had drifted about 15 minutes into the future. Here's what I did to correct the issue: Text. And that should only happen if the DCs are not communicating to each other.

For VMware questions, you should ask in a VMware forum. Hyper-V has something known as integration services that assist in time synchronization, but it is for when the system starts, not while it is running.

You would have ask VMware if they have settings which override the VM operating system settings. It is the nature of VMs to have time drift because they do not have a real-time clock, or more accurately, their 'real-time clock' is performed in software and is dependent upon the speed of the host CPU.

You have yours domain joined, so that should ensure time synchronization. Since there was a variance on a domain joined machine, my first step would be to monitor the connection from the VM to the domain controller.

I would also have the application owner check their code. Kerberos, by default, allows for a time difference of 5 minutes between machines.

The problem here is that BizTalk Server is running on both the VMs essentially it's an active-active cluster - so lots of concurrent workloads are running that need time to be synchronous between the two machines, as lots of logic is dependent on timestamps etc.

I noticed that the 2 machines are talking to different DC servers on the domain. Office Office Exchange Server. Not an IT pro? Resources for IT Professionals. Sign in. United States English. Stack Overflow for Teams — Collaborate and share knowledge with a private group.

Create a free Team What is Teams? Collectives on Stack Overflow. Learn more. Asked 9 years, 1 month ago. Active 9 years, 1 month ago. Viewed 3k times. Improve this question. Deruwyn Deruwyn 63 1 1 silver badge 5 5 bronze badges. This'd probably do better on serverfault. Add a comment. Active Oldest Votes. Why does it happen?

How to fix it: If you have accurate host time, then I'm pretty sure an adequate solution is to have VMware Tools time sync every 60 seconds.

Place this in the VM's. If you want, you can make it sync with the host every second: tools. More solutions info: Here is an excellent set of answers keeping a VM in good time sync, even though it's for a Linux VM, along with occasional bonus answers on why the problem occurs: How to keep a VMWare VM's clock in sync? Improve this answer. Community Bot 1 1 1 silver badge.