The XenServers are all configured for the same NTP servers, the time is correct on all of them, yet only the guests boot to wildly off times more than 2 hours in some instances. And as such, all group policy processing fails and the box is virtually useless.
Your HostTime registry key is the only thing that seems to work in my limited testing. I vaguely remember some hardware that has issues, but a server on the domain should follow the. A local time source or syncing out. No unfortunately not, I haven't found the root cause for this as of now. Very strange indeed. In the mean time I have deployed the registry "fix" on all my VMs - and I haven't had a single problem with time sync since then Usually I also want to find the root cause - but there are limits on how much time you put on an issue - especially if you have a pretty simple workaround Our XA admin was ready to bang her head through a wall over this issue, because it's been killing us.
Before I stumbled across your post, she had written a script to force a lot of stuff at startup just to get through testing, but since making this change everything has been good.
I'm going to just roll with it, as well, but I do believe that she submitted a ticket with Citrix last week. If that goes anywhere, I'll absolutely post the findings here. Same problem. I discovered it after updating XenTools to 7. XenServer 7. Removing the parameter value of the HostTime in the registry or set to "Local", or disable service solved it problem. With eyery reboot the time of the vm added 2h48m - so there is no way for authentication with AD and time sync. Running hybrid cloud solution, Netscaler in the cloud with the Xenservers on prem.
The VMs would all lose time by hours and minutes. Usually 4 hours and 30 minutes either behind or future. When this time change would happen the VMs would should up as Lost Connection in cloud portal and could not be reached by those requesting a desktop through the storefront.
I would manually sync the windows clocks and the time would correct but usually within 20 minutes the time would change again to some strange time. I had followed many other Windows clock troubleshooting steps and suggestions but the time would never stay in sync. I have probably worked on this issue for over 40 hours without resolving, including working with Citrix support, until I found this forum post.
I was literally at wits end over this issue. Can't tell you how glad I am to have this resolved. Hopefully Citrix can come to some solution. You will be able to leave a comment after signing in.
Re: Anyone have any luck with Ubuntu 5. I have had no luck getting any of the Ubuntu 5. They all seem to hang at boot after displaying they're mounting the initramfs. The 5. Anyone had any luck getting these kernels to work?. And my Open Now there is an error when reinstalling ESXI7. Oh, my God, just now I seem to have found Re: Migration NSX-v 6. I have standart license of NSX. However, on "Migrate configuration" stage I get the error:. Windows 10 arm M1 mac for the love of god help I am at my wits end , before you judge i understand vmware tech preview is not technically meant for windows 10 but i cant get any form of windows working at the moment on an M1 mac.
Everytime i try with all arm 64 versions of windows 10 i Both running Arch Linux. The guest is using vmxnet3. I see that the read speed guest is receiver is much less than the write speed. Normally I run it on native hardware i. Sometimes my USB phones are not working, are getting randomly disconnected and then reconnected i can hear a click on phones. But most critical if I Faster ways to copy datastore content s We are rebuilding a VM that was affected during last global Ransware attack, has a size of 2.
We wanted to connect an external disk to the ESXi host and "copy" the VM files, well that's not easy as said, after going through many discussions and articles. Now, we are Improve this question.
Are you using KVM? Which VM technology are you using? I think virtual machines have an emulated hardware clock, which is basically proxying to the real hardware clock. Not sure if it is possible for them to be out of sync with the host machine — pqnet. See this article: rogierm. Add a comment. Active Oldest Votes. If you are running VM tools, the tool has an option to periodically sync the time with the host.
Improve this answer. I am using virsh to start and stop VM guest. Is the command above still valid? Doesn't matter how it's started. Just matters if it is a vmware guest and if vmware tools have been installed and are running inside the guest. Added NTP check to the answer.
It is possible that some NTP service is still running on your system. Try chkconfig --list ntpdate and chkconfig --list ntpd It is also possible that ntpdate is called after some other event.
This is on ESX so may not apply. Ben Ben 11 1 1 bronze badge. This is the only one working for me. Sign up or log in Sign up using Google. Sign up using Facebook.
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