Question

I have a WCF service hosted in IIS6. It is doing simple WebRequest.

When I call it from ASMX service(Hosted in the same IIS6). Everything is working great.
When I call it from WinForms application. Everything is also working as expected.
The problem arises when I call it from another WCF service.
Then response.GetResponseStream() throws 401 unauthorized error.

What am I doing wrong here?

System.Net.WebRequest request = WebRequest.Create(full_path_to_the_webpage);
request.Credentials = new NetworkCredential(username_for_http_login, password_for_http_login);
request.PreAuthenticate = true;
request.UseDefaultCredentials = false;

WebResponse response = request.GetResponse();

Stream responseStream = response.GetResponseStream(); //THIS line returns 401 Unauthorized

Answer 1

Turned out that php script needed username to be lowercase only.
So this code is happily working now.

Thank you to all who tried to help me.

To Rajesh: No i was not using service itself with WebRequest. I called one php file from another server with WebRequest.