ASPNETDB.MDF from Host Server --- Login failed for user 'NT AUTHORITY\NETWORK SERVICE'.

I ran into a problem transfering the website from the developer box to the host box.   I developed in 2008 VDE and 2008 SQL Express.  From the error I am guessing there is a problem with the website connecting to the database.

So I used asp.net Frameworks Reg SQL on the Host Box Located:
("C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\aspnet_regsql.exe")

Then I changed the Machine.Config File on the Host box also Located
("C:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\CONFIG\machine.config")
I modified the connection string to this -

  <connectionStrings>
    <add name="LocalSqlServer" connectionString="data source=AMCAP000;Integrated Security=SSPI;User Instance=true" providerName="System.Data.SqlClient"/>
  </connectionStrings>


Any suggestions on how to make this work?

Server Error in '/ACF' Application.
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Login failed for user 'NT AUTHORITY\NETWORK SERVICE'. 
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code. 
 
Exception Details: System.Data.SqlClient.SqlException: Login failed for user 'NT AUTHORITY\NETWORK SERVICE'.
 
Source Error: 
 
 
Line 19:     public virtual string MyTheme {
Line 20:         get {
Line 21:             return ((string)(this.GetPropertyValue("MyTheme")));
Line 22:         }
Line 23:         set {
 
 
Source File: c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\acf\233ceae2\35975430\App_Code.qtodrcie.0.cs    Line: 21 
 
Stack Trace: 
 
 
[SqlException (0x80131904): Login failed for user 'NT AUTHORITY\NETWORK SERVICE'.]
   System.Data.SqlClient.SqlInternalConnection.OnError(SqlException exception, Boolean breakConnection) +4844759
   System.Data.SqlClient.TdsParser.ThrowExceptionAndWarning(TdsParserStateObject stateObj) +194
   System.Data.SqlClient.TdsParser.Run(RunBehavior runBehavior, SqlCommand cmdHandler, SqlDataReader dataStream, BulkCopySimpleResultSet bulkCopyHandler, TdsParserStateObject stateObj) +2392
   System.Data.SqlClient.SqlInternalConnectionTds.CompleteLogin(Boolean enlistOK) +35
   System.Data.SqlClient.SqlInternalConnectionTds.AttemptOneLogin(ServerInfo serverInfo, String newPassword, Boolean ignoreSniOpenTimeout, Int64 timerExpire, SqlConnection owningObject) +144
   System.Data.SqlClient.SqlInternalConnectionTds.LoginNoFailover(String host, String newPassword, Boolean redirectedUserInstance, SqlConnection owningObject, SqlConnectionString connectionOptions, Int64 timerStart) +342
   System.Data.SqlClient.SqlInternalConnectionTds.OpenLoginEnlist(SqlConnection owningObject, SqlConnectionString connectionOptions, String newPassword, Boolean redirectedUserInstance) +221
   System.Data.SqlClient.SqlInternalConnectionTds..ctor(DbConnectionPoolIdentity identity, SqlConnectionString connectionOptions, Object providerInfo, String newPassword, SqlConnection owningObject, Boolean redirectedUserInstance) +189
   System.Data.SqlClient.SqlConnectionFactory.CreateConnection(DbConnectionOptions options, Object poolGroupProviderInfo, DbConnectionPool pool, DbConnection owningConnection) +185
   System.Data.ProviderBase.DbConnectionFactory.CreatePooledConnection(DbConnection owningConnection, DbConnectionPool pool, DbConnectionOptions options) +31
   System.Data.ProviderBase.DbConnectionPool.CreateObject(DbConnection owningObject) +433
   System.Data.ProviderBase.DbConnectionPool.UserCreateRequest(DbConnection owningObject) +66
   System.Data.ProviderBase.DbConnectionPool.GetConnection(DbConnection owningObject) +499
   System.Data.ProviderBase.DbConnectionFactory.GetConnection(DbConnection owningConnection) +65
   System.Data.ProviderBase.DbConnectionClosed.OpenConnection(DbConnection outerConnection, DbConnectionFactory connectionFactory) +117
   System.Data.SqlClient.SqlConnection.Open() +122
   System.Web.DataAccess.SqlConnectionHolder.Open(HttpContext context, Boolean revertImpersonate) +87
   System.Web.DataAccess.SqlConnectionHelper.GetConnection(String connectionString, Boolean revertImpersonation) +221
   System.Web.Profile.SqlProfileProvider.GetPropertyValuesFromDatabase(String userName, SettingsPropertyValueCollection svc) +772
   System.Web.Profile.SqlProfileProvider.GetPropertyValues(SettingsContext sc, SettingsPropertyCollection properties) +433
   System.Configuration.SettingsBase.GetPropertiesFromProvider(SettingsProvider provider) +258
   System.Configuration.SettingsBase.GetPropertyValueByName(String propertyName) +132
   System.Configuration.SettingsBase.get_Item(String propertyName) +102
   System.Web.Profile.ProfileBase.GetInternal(String propertyName) +36
   System.Web.Profile.ProfileBase.get_Item(String propertyName) +68
   System.Web.Profile.ProfileBase.GetPropertyValue(String propertyName) +7
   ProfileCommon.get_MyTheme() in c:\WINDOWS\Microsoft.NET\Framework\v2.0.50727\Temporary ASP.NET Files\acf\233ceae2\35975430\App_Code.qtodrcie.0.cs:21
   _Default.Page_PagePrePreInit(Object sender, EventArgs e) in G:\WEBSITE\ACF\Default.aspx.vb:5
   System.Web.UI.Page.OnPreInit(EventArgs e) +8694814
   System.Web.UI.Page.PerformPreInit() +31
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +282
 
 
 
 
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Version Information: Microsoft .NET Framework Version:2.0.50727.3053; ASP.NET Version:2.0.50727.3053

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