The monitoring starts and then the SQL server Status button turns red .
The message you get is server status under investigation .
When you look at the alarm log, the message is
SQL Server connection is in an unscheduled outage : Failed to start: OutOfProcessCollector .
You do not have the proper permissions to start the Quest Diagnostic server service.
1. On the Quest diagnostic server please go to control panel - admin tools - services - Quest Diagnostic Server service
2. Change the log on user of the service to a domain admin user.
3. Restart the Quest Diagnostic Server service.