A workaround that is not associated with a trusted SQL Server connection

Build the SQL database, set the user name and password, the connection is good, but the above problems, the original trap is not set SQL Server logon authentication mode for mixed authentication mode, because the SQL Server installed after the default authentication mode for Windows Authentication mode, resulting in errors.
Workaround:
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Start SQL Server Enterprise Manager and select the servers for which you want to authenticate mode settings. Right-click the server, select Properties in the pop-up menu, SQL Server will eject the Properties dialog box

Select security Options in the Properties dialog box, select SQL Server and Windows at the authentication point, and then determine.