Trying to access Spotlight Essentials in Toad's Health Check tool, but getting "Diagnostic Server not found or cannot be accessed" error. (4229732)

Trying to launch Spotlight Essentials and setup Diagnostic Server, but getting error regarding diagnostic server not being found or not running.  

How to verify or troubleshoot diagnostic servers and Spotlight Essentials issue in Toad's Health Check. 

To work with Tools | Health Check, Spotlight Essentials needs to be set up and signed in, and the Diagnostic Server needs to be installed and running. 

Go to Tools | Options | Spotlight Essentials.

In "Setup Account", verify that you are signed into Essentials and it note "You are signed in as:" and there is a "User Token". 

In "Configure Diagnostic Server" make sure a server host is specified in the first field. If there is nothing displayed, then no Diagnostic Server has been specified. Select the correct host/IP and click "Connect". In some case, a diagnostic server has not been installed anywhere at all. In that case, click the "Install" button on the same page to walk through the installation wizard for the DS. 

In Configure Connections, make sure a connection to a target server is defined. This list is based off the selected Diagnostic Server. If you have multiple DS setup, then this connections list will reflect the DS that is currently connected, based off the "Configure Diagnostic Server" tab. If no connections have been defined for the DS, then no information is being collected. 

Diagnostic Server Status Issues

• The Diagnostic Server cannot be located.
  • Check the host name and try again.
    
    
• You do not have the necessary permissions to connect to the Diagnostic Server.
  • The Windows user making the Toad connection to the Diagnostic Server must be a member of at least one Diagnostic User Group. These groups are created when the Diagnostic Server is installed.
    
    

  Group	Description
  Diagnostic Users	Members of this group are granted user privileges.
  Diagnostic Administrators	Members of this group are granted administrator privileges in addition to user privileges. They can kill database sessions and change sensitive configuration items.
  Diagnostic Read-Only	Members of this group can view reports. They cannot make operational changes.

  • The Windows user that installed the Diagnostic Server is automatically added to all groups. Your Network Administrator can add other members as required. Members can be Windows users or Windows domain groups. Aliases are not supported. If you want to increase your level of membership, contact your Network Administrator. The privileges available to you correspond to the highest Diagnostic User group you are a member of. Diagnostic Read-Only users have the fewest privileges, but if you are also a member of the Diagnostic Administrators group then you will have administrator privileges.
    
  • Note: Any change to a user’s role by modifying these Windows groups will not take effect until that user restarts Toad and reconnects it to the Diagnostic Server. For this reason, it is recommended that the Diagnostic Server be restarted if the role changes need to take immediate effect.
    
    
• The Diagnostic Server is not running - Connection to the Diagnostic Server has been lost.
  • Ensure the Diagnostic Server is running. The Diagnostic Server is a Windows service which you can start/stop from the Windows Control Panel.
  • Check in Windows's Services and look for either the service noted as "Toad for SQL Server Diagnostic Server" or "Spotlight Diagnostic Server"