You need a user account that has full administrative rights to the SQL Server database to install new SolidWorks Electrical databases or to connect to a SolidWorks Electrical installation on an existing instance of SQL Server.
For SolidWorks Electrical to function properly, you must enable SQL Server for mixed mode authentication. Mixed mode authentication allows the use of either Windows or SQL Server credentials.
To connect to an existing SQL Server database, you can use Windows or SQL Server authentication. Enter a user name and password for a Windows or SQL Server login that has full SQL Server administrative rights.
You cannot use the ‘tew’ user to connect to SQL Server for installation. Contact your SQL Server administrator or system administrator for help to obtain a login with the proper credentials for SQL Server.