Ошибка входа для пользователя 'sc' даже после создания пользователя

Я пытаюсь запустить веб-приложение, но не могу войти в систему с учетной записью пользователя (sc). Я продолжаю получать

Не удалось войти в систему для пользователя "sc".

Описание: необработанное исключение произошло во время выполнения текущего веб-запроса. Просмотрите трассировку стека для получения дополнительных сведений об ошибке и ее происхождении в коде.

Сведения об исключении: System.Data.SqlClient.SqlException: не удалось войти для пользователя sc.

Я дал пользователю sc следующие разрешения

Статус входа в систему включен и разрешение на подключение также предоставляется

Моя строка подключения -

<configuration>

  <system.web>
    <compilation debug="true" targetFramework="4.5.2" />
    <httpRuntime targetFramework="4.5.2" executionTimeout="43200" maxRequestLength="104856"   />

  </system.web>

  <appSettings>
    <!--<add key="ConnectionString" value="Data Source=(LocalDB)\MSSQLLocalDB;Initial Catalog=test;Integrated Security=True" />-->
    <add key="ConnectionString" value="data source=(LocalDB)\MSSQLLocalDB;UID=sc;PWD=mystrongpassword;initial catalog=test;"/>

  </appSettings>
</configuration>

Вот мой журнал событий -

Event code: 3005
Event message: An unhandled exception has occurred. 
Event time: 7/19/2016 3:12:31 PM 
Event time (UTC): 7/19/2016 9:42:31 AM 
Event ID: 5512cef4f9054c2093a8899c987115be 
Event sequence: 7 
Event occurrence: 3 
Event detail code: 0 

Application information: 
    Application domain: /LM/W3SVC/1/ROOT/Dashboard-1-131133944396956249 
    Trust level: Full 
    Application Virtual Path: /Dashboard 
    Application Path: C:\inetpub\wwwroot\Dashboard\ 
    Machine name: W104QWRX52 

Process information: 
    Process ID: 19332 
    Process name: w3wp.exe 
    Account name: IIS APPPOOL\DefaultAppPool 

Exception information: 
    Exception type: SqlException 
    Exception message: Login failed for user 'sc'.
   at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, SqlCredential credential, Object providerInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString userConnectionOptions, SessionData reconnectSessionData, DbConnectionPool pool, String accessToken, Boolean applyTransientFaultHandling)
   at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions)
   at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnectionPool pool, DbConnection owningObject, DbConnectionOptions options, DbConnectionPoolKey poolKey, DbConnectionOptions userOptions)
   at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
   at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
   at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection)
   at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection)
   at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection)
   at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
   at System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry)
   at System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry)
   at System.Data.SqlClient.SqlConnection.Open()
   at Microsoft.ApplicationBlocks.Data.SqlHelper.PrepareCommand(SqlCommand command, SqlConnection connection, SqlTransaction transaction, CommandType commandType, String commandText, SqlParameter[] commandParameters, Boolean& mustCloseConnection)
   at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteDataset(SqlConnection connection, CommandType commandType, String commandText, SqlParameter[] commandParameters)
   at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteDataset(SqlConnection connection, CommandType commandType, String commandText)
   at Helper.getProductCount() in c:\inetpub\wwwroot\Dashboard\App_Code\helper.cs:line 44
   at charts_ProductCount.GenerateProductCountChart() in c:\inetpub\wwwroot\Dashboard\charts\ProductCount.ascx.cs:line 24
   at charts_ProductCount.Page_Load(Object sender, EventArgs e) in c:\inetpub\wwwroot\Dashboard\charts\ProductCount.ascx.cs:line 18
   at System.Web.UI.Control.OnLoad(EventArgs e)
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)



Request information: 
    Request URL: http://localhost/Dashboard/Home.aspx 
    Request path: /Dashboard/Home.aspx 
    User host address: ::1 
    User:  
    Is authenticated: False 
    Authentication Type:  
    Thread account name: IIS APPPOOL\DefaultAppPool 

Thread information: 
    Thread ID: 14 
    Thread account name: IIS APPPOOL\DefaultAppPool 
    Is impersonating: False 
    Stack trace:    at System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, SqlCredential credential, Object providerInfo, String newPassword, SecureString newSecurePassword, Boolean redirectedUserInstance, SqlConnectionString userConnectionOptions, SessionData reconnectSessionData, DbConnectionPool pool, String accessToken, Boolean applyTransientFaultHandling)
   at System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, DbConnectionPoolKey poolKey, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection, DbConnectionOptions userOptions)
   at System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnectionPool pool, DbConnection owningObject, DbConnectionOptions options, DbConnectionPoolKey poolKey, DbConnectionOptions userOptions)
   at System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
   at System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject, DbConnectionOptions userOptions, DbConnectionInternal oldConnection)
   at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, UInt32 waitForMultipleObjectsTimeout, Boolean allowCreate, Boolean onlyOneCheckConnection, DbConnectionOptions userOptions, DbConnectionInternal& connection)
   at System.Data.ProviderBase.DbConnectionPool.TryGetConnection(DbConnection owningObject, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal& connection)
   at System.Data.ProviderBase.DbConnectionFactory.TryGetConnection(DbConnection owningConnection, TaskCompletionSource`1 retry, DbConnectionOptions userOptions, DbConnectionInternal oldConnection, DbConnectionInternal& connection)
   at System.Data.ProviderBase.DbConnectionInternal.TryOpenConnectionInternal(DbConnection outerConnection, DbConnectionFactory connectionFactory, TaskCompletionSource`1 retry, DbConnectionOptions userOptions)
   at System.Data.SqlClient.SqlConnection.TryOpenInner(TaskCompletionSource`1 retry)
   at System.Data.SqlClient.SqlConnection.TryOpen(TaskCompletionSource`1 retry)
   at System.Data.SqlClient.SqlConnection.Open()
   at Microsoft.ApplicationBlocks.Data.SqlHelper.PrepareCommand(SqlCommand command, SqlConnection connection, SqlTransaction transaction, CommandType commandType, String commandText, SqlParameter[] commandParameters, Boolean& mustCloseConnection)
   at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteDataset(SqlConnection connection, CommandType commandType, String commandText, SqlParameter[] commandParameters)
   at Microsoft.ApplicationBlocks.Data.SqlHelper.ExecuteDataset(SqlConnection connection, CommandType commandType, String commandText)
   at Helper.getProductCount() in c:\inetpub\wwwroot\Dashboard\App_Code\helper.cs:line 44
   at charts_ProductCount.GenerateProductCountChart() in c:\inetpub\wwwroot\Dashboard\charts\ProductCount.ascx.cs:line 24
   at charts_ProductCount.Page_Load(Object sender, EventArgs e) in c:\inetpub\wwwroot\Dashboard\charts\ProductCount.ascx.cs:line 18
   at System.Web.UI.Control.OnLoad(EventArgs e)
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Control.LoadRecursive()
   at System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint)


Custom event details: 

Я прочитал несколько сообщений, в которых предлагалось создать пользователя / назначить разрешение / изменить строку подключения и т.д., но пока ничего не помогло. Любая помощь приветствуется.