asp.net windows authentication to sql server

Question

I can not seem to get sql server to recognize my credentials.

Asp.net recognizes me when I login but when I execute a sql command I get a login failed message.

Answer 1

Are your ISS server and SQL Server running on the same machine?

If not, Active Directory has to be configured to allow your IIS server to impersonate your accout towards the SQL Server. See How To: Use Protocol Transition and Constrained Delegation in ASP.NET 2.0.