By default, when you create this, the virtual lab will do some tests, and if the tests are done, it will shut down the virtual lab. The reason for that is that it is used by SureBackup to make sure that you can recover and it does that automated. when you want to do some testing on your own, you need to tell it to stay alive (until you decide to end the testing)...
The checkbox for that can be found in step 4 of the procedure: https://helpcenter.veeam.com/docs/backu ... tml?ver=95
You need to select the Keep the application group running after the job completes check box.
Also, the entire step-by-step for this can be found starting here: https://helpcenter.veeam.com/docs/backu ... tml?ver=95
This is for VMware but we have the same for Hyper-V also
Hope it helps, if not, let us know