How to connect to remotely SQL Server 2008 using MVC3 EF4 - asp.net

Question

I'm trying to connect remotely and I have the following connection string on my MVC3 using EF4 ctp5 code first
<add name="ApplicationServicesX"
connectionString="provider=System.Data.SqlClient;provider connection string='Data Source=asc-svr2;
Initial Catalog=AdventureWorks;Integrated Security=True;Connection Timeout=60;
multipleactiveresultsets=true'" providerName="System.Data.EntityClient" />
and it gives an error
[ProviderIncompatibleException: The provider did not return a ProviderManifestToken string.]
and
Login failed. The login is from an untrusted domain and cannot be used with Windows authentication.
my controller looks like this
public ActionResult Index()
{
var post = cmsDB.Posts.ToList();
return View(post);
}
When I run the code on my local machine no problem at all but when I get into
remotely connecting into SQL Server 2008 the problem arises.
Thanks a lot for any help.

Answer 1

Your connection string is configured to use Integrated Windows Authentication (Integrated Security=True). For this to work make sure you have enabled NTLM in IIS. Also if the SQL Server is on a different physical machine than the web server you might need to configure delegation. As an alternative you could use SQL authentication with a fixed account:
<add name="ApplicationServicesX"
connectionString="provider=System.Data.SqlClient;provider connection string='Data Source=asc-svr2; Initial Catalog=AdventureWorks;User Id=foo;Password=secret;Connection Timeout=60;multipleactiveresultsets=true'"
providerName="System.Data.EntityClient" />