Hyper-v time sync cant access PDC vm

Question

I have 3 hyper-v servers with DC vms and a fileserver. We have had some pc's refusing to update daylight savings time. It was set up through group policy. As a temporary measure I disabled the group policy so I could set the pc's manually. After doing that my servers time went haywire and my network went down. The whole network went back an hour, the unaffected ones were now an hour behind and teh others 2 hours. It even got to a point where some pc's were showing 3 hours behind. I haven't been able to get anything out of them since. How do I get access to the PDC from the host or somehow to get it to boot up. I tried going into the bios with it disconnected from the internet and stepping back hour by hour on the time trying to get it to boot with no luck. How do I see if they are even running? Is there a way to remote in from the host?

Answer 1

Anyone using hyper-v needs to get real familiar with the powershell commands you will need because the host interface is just plain useless as with admin center and hyper-v manager in this case. Now my next step is getting the primary DC off of a VM so this never happens again.

Answer 2

get access to the PDC from the host or somehow to get it to boot up

Not clear what's going on? You may have to boot DSRM mode to see what failed. May be a simpler process to seize roles to another healthy one.
https://learn.microsoft.com/en-us/troubleshoot/windows-server/identity/transfer-or-seize-fsmo-roles-in-ad-ds

perform cleanup
https://learn.microsoft.com/en-us/windows-server/identity/ad-ds/deploy/ad-ds-metadata-cleanup
https://techcommunity.microsoft.com/t5/itops-talk-blog/step-by-step-manually-removing-a-domain-controller-server/ba-p/280564

and rebuild it.

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