Koneksi MVC 4 ke SQL Server 2012

Jika Anda dapat terhubung menggunakan Sql Management Studio maka saya yakin pasti ada masalah dengan Connection String -

String Koneksi Anda menggunakan format berikut -

Data Source=myServerAddress;Initial Catalog=myDataBase;Integrated Security=SSPI;
User ID=myDomain\myUsername;Password=myPassword;

Coba gunakan IP Address, Port di bidang Sumber Data seperti -

 <connectionStrings>
    <add name="ConnectionStringName"
        providerName="System.Data.SqlClient"
        connectionString="Data Source=190.190.200.100,1433;
                          Initial Catalog=MyDatabaseName;
                          Integrated Security=False;
                          User ID=MyUserID;Password=MyPassword;
                          MultipleActiveResultSets=True" />
  </connectionStrings>

ATAU coba variasi lain -

Keamanan Standar

Server=myServerAddress;Database=myDataBase;User Id=myUsername;Password=myPassword;

Koneksi Tepercaya

Server=myServerAddress;Database=myDataBase;Trusted_Connection=True;

Koneksi ke instance SQL Server

Server=myServerName\myInstanceName;Database=myDataBase;User Id=myUsername;
Password=myPassword;

Referensi - http://www.connectionstrings.com/sql-server-2012