Verify that %ServerName; is online and can be remotely accessed from your computer. 2) Verify that the Virtual Machine Manager ...

1) Verify that %ServerName; is online and can be remotely accessed from your computer.
2) Verify that the Virtual Machine Manager service is started on %ServerName;. If the problem persists, restart the Virtual Machine Manager service.

To find out the result of the job, re-connect to the server, and run the following cmdlet:
PS> Get-VMMServer %ServerName; | Get-Job | where { $_.ID -eq "%TaskID;"}