I have a standalone DC set up on a new HP Proliant ML350 G6. A few times a day (randomly) the time changes. I'm not sure if it's the BIOS time changing, which then changes the OS time or the other way around. I replaced the CMOS battery and flashed the BIOS. Is there anything in Server 08R2 that would cause this in any way? It's a standalone but is the time source for the domain. This is in a secure facility so isn't connected to the Internet. Fortunately, it isn't in production yet but it need to get put in ASAP. Any ideas / thoughts / suggestions? Thanks!

By chance is the server a Virtual Machine. The Windows 2008 server will not change the time unless it is updated. If the system is not updating to an external time source then you need to check to make sure the system can update from the CMOS http://technet.microsoft.com/en-us/library/cc731790(WS.10).aspx#BKMK_Configuration http://support.microsoft.com/kb/884776/en-us

Hi, I would like to confirm the following questions: 1. Did you change any settings before the issue began? 2. Is this the only time source server in the domain? 3. What are the related event errors you can read in Event Viewer? This issue may be caused by the installed third party software conflicts. Based on the current situation, I would like to suggest you disable all the third party services or perform a Clean Boot to test the issue. For the detailed steps of how to perform a Clean Boot environment, please refer to the following steps: 1. Click Start, type msconfig in the Start Search box, and then press ENTER. 2. If you are prompted for an administrator password or for a confirmation, type the password or click Continue. 3. On the General tab, click Selective startup. 4. Under Selective Startup, click to clear the Load startup items check box. 5. Click the Services tab, click to select the Hide All Microsoft services check box, and then click Disable all. 6. Click OK, and then click Restart. What is the result in Clean Boot? Regards,Please remember to click Mark as Answer on the post that helps you, and to click Unmark as Answer if a marked post does not actually answer your question. This can be beneficial to other community members reading the thread.

Hi, Turns out this box had bigger issues. Hp changed out the system board. Running fine now, thanks for the ideas.