Created Unassigned: Troubleshooting Server and Database Connection Problems [2131]

To create a database connection string by using the UI
Examples connection string from http://docs.composite.net website
Standard Security:
Data Source=myServerAddress;Initial Catalog=myDataBase;User Id=myUsername;Password=myPassword;
Trusted Connection:
Data Source=myServerAddress;Initial Catalog=myDataBase;Integrated Security=SSPI
But is this Host company To permission set
Data Source=myServerAddress,1433;Initial Catalog=myDataBase;Integrated Security=False;User ID=myUsername;Password=myPassword;" providerName="System.Data.SqlClient" />
Web.config