Failed to connect to the {0}. Ensure the {1} exists, is a Sql server, and that you have the appropriate permissions to access ...

Failed to connect to the {0}.  Ensure the {1} exists, is a Sql server, and that you have the appropriate permissions to access the server.  To diagnose the problem, review the extended error information located at {2}.  Please consult the SharePoint Products Configuration Wizard help for additional information regarding database server security configuration and network access.