title: C# HttpWebRequest - PreAuthenticate: Still returns 401 forbidden (HTTPS)
body: <p>I would like to ask you for help with the following code I have quickly write, beucase I always get "403 FORBIDDEN".</p>
  
  <pre><code>HttpWebRequest pozadavek = (HttpWebRequest)WebRequest.Create("LINK THAT ASKS FOR AUTHLOGIN"); //https
      System.IO.StreamReader stream = null;
      System.String result = null;
      public Form1()
      {
          InitializeComponent();
          pozadavek.AuthenticationLevel = System.Net.Security.AuthenticationLevel.MutualAuthRequested;
          pozadavek.Credentials = new NetworkCredential("NAME", "PASS");
          pozadavek.PreAuthenticate = true;
      }
  
      private void Form1_Load(object sender, EventArgs e)
      {
          WebResponse webresponse = pozadavek.GetResponse(); //throws an exception:403 forbidden
          stream = new System.IO.StreamReader(webresponse.GetResponseStream());
          result = stream.ReadToEnd();
          this.webBrowser1.DocumentText = result;
      }
  </code></pre>