How to fix “Cannot connect to the configuration database.”
When I browse to a SharePoint site, I got the Server Error in ‘/’ Application, Cannot connect to the configuration database.
The reason you get the message is that SharePoint WFE cannot connect to the SQL database, you need to check the weather SQL server service is started as shown below.
When checking the SQL Server service, I see it is not started. After starting the service, it works like a charm.