This issue usually results from an incorrect service name reference. This arises when the MySQL Workbench contains a reference to an older service name (e.g. mysql), whereas MySQL Server 8.0.x uses the service name MySQL80.
Check the Name of the Required Service
- Open the Services Desktop app from the Windows menu.
- Then search the list of services to identify the name of the MySQL service.
Correct the Reference in MySQL Workbench
- Open MySQL Workbench.
- In the Server menu select Management Access Settings.
- In the Manage Server Connections dialog update the Window Service Name to match the service name identified earlier.