VM Server goes shutdown automatically after every one Hour in ESXi Host [closed]
Solution 1:
If these are Windows Server machines, shutting down every hour is a typical behavior of trial licenses (which you shouldn't use in production) when not connected to the Internet. You can confirm this by looking at the Event Logs.
If they are Linux or Unix servers (or properly licensed Windows machines), look at scheduled tasks inside the guest:
- Linux/Unix: cron, systemctl, at, ps auxwwf| grep nohup
- Windows: Get-ScheduledTask
If you can rule out scheduled tasks or license issues, you should look at the hypervisor itself and possible PSU issues.