Could not create SSL/TLS secure channel RSS

• • Reply
  

  bryanc

  15 Posts

  Could not create SSL/TLS secure channel

  Apr 07, 2009 09:14 PM|LINK

  Hi all,

  We have some code that does a post to a https address using HttpWebResponse. It works fine on server 2003 with iis 5.x or whatever, but when we try to run it on 2008 with IIS7, it gives us the following error:

  System.Net.WebException: The request was aborted: Could not create SSL/TLS secure channel.

  I suspected it was a certificate issue or something, so i added the ServicePointManager.ServerCertificateValidationCallback and just returned "true" but the issue still persists.

  this is the relevent code:

          HttpWebRequest Req = ((HttpWebRequest)(HttpWebRequest.Create(("https://secure.[siteaddress]?" + postData))));
          Req.AllowAutoRedirect = true;
          Req.Timeout = 150000;
          Req.ProtocolVersion = HttpVersion.Version11;
          Req.ContentLength = postData.Length;
          Req.ContentType = "application/x-www-form-urlencoded";
          Req.KeepAlive = false;
          postData = "";
  Req.ContentLength = postData.Length;
          Req.AllowWriteStreamBuffering = true;
          string result;
  
  ServicePointManager.ServerCertificateValidationCallback += new System.Net.Security.RemoteCertificateValidationCallback(ValidateCertificate);
  
  HttpWebResponse objResponse = Req.GetResponse() as HttpWebResponse;
   

  any ideas as to why this is happening?

  also, if we just paste the request into the address bar of a browser on the machine, it works with no errors.
  

   

  • Edited by bryanc on Apr 07, 2009 09:26 PM
  • Moved by tomkmvp on Apr 08, 2009 01:23 PM
• • Reply
  

  JaroDunajsky

  194 Posts

  Microsoft

  Re: Could not create SSL/TLS secure channel

  Apr 27, 2009 03:31 AM|LINK

  You should use system.diagnostics to get verbose log of what is going on the client side.There may be error details burried in the log.

   

   

  Jaroslav Dunajsky (MSFT, IIS)
• • Reply
  

  lextm

  4572 Posts

  Re: Could not create SSL/TLS secure channel

  Apr 27, 2009 09:22 AM|LINK

  To see how to enable tracing, please follow this blog post,

  http://blogs.msdn.com/asiatech/archive/2009/04/08/using-system-net-trace-to-troubleshooting-ssl-problem-in-net-2-0-application.aspx

  Lex Li
  http://lextm.com
  ---------------------------
  This posting is provided "AS IS" with no warranties, and confers no rights.
• • Reply
  

  Alan-McG

  1 Post

  Re: Could not create SSL/TLS secure channel

  Nov 16, 2009 01:36 AM|LINK

   I am experiencing the exact same problem right now.. Did you manage to solve this?