A shut down VM action task has a Failed status in the Recent Task list.

The Shut Down VM action did not run successfully.

The Recent Tasks list indicates that a Shut Down VM action has a task status of Failed. When you evaluate the Messages list for the selected job, you see Failure: Shut down confirmation timeout.

The shut down process involves shutting down the guest operating system and powering off the virtual machine. The wait time is 120 seconds to shut down the guest operating system. If the guest operating system does not shut down in this time, the action fails because the shut down action is not confirmed.

Check the status of the guest operating system in vCenter Server to determine why is did not shut down in the allotted time.