Connected host failed to respond (internal NAT address)
- by MostRandom
I'm writing my first C# web application that connects to an XML based service. It requires that I present a certificate and feed the XML stream. It seems to authenticate properly but then it gives the following error:
A connection attempt failed because the connected party did not properly respond after a period of time, or established connection failed because connected host has failed to respond 10.1.10.4:3128
The funny thing is that I'm not on a proxy or anything like that. I'm connecting directly to the internet. At one point I we did use a proxy that with internal NAT address.
So my question is: Does Visual Studio have some sort of default proxy setting that I need to change? This IP is no longer used for anything, so I know that I don't need to use any proxy authentication code.
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Web;
using System.Net;
using System.Security.Cryptography.X509Certificates;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Web.UI.HtmlControls;
namespace WebApplication1
{
public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
Uri requestURI = new Uri("*site omitted*");
//Create the Request Object
HttpWebRequest pageRequest = (HttpWebRequest)WebRequest.Create(requestURI);
//After installing the cert on the server export a client cert to the working directory as Deluxe.cer
string certFile = "*certificate omitted*";
X509Certificate cert = X509Certificate.CreateFromCertFile(certFile);
//Pull in your Data, if it is from an external xml as below or create an xml string with variables if a dynamic post is required.
string xmlPath = "*XML omitted*";
System.Xml.XmlDocument passXML = new System.Xml.XmlDocument();
passXML.Load(xmlPath);
//XML String with the data needed to pass
string postData = passXML.OuterXml;
//Set the Request Object parameters
pageRequest.ContentType = "application/x-www-form-urlencoded";
pageRequest.Method = "POST";
pageRequest.AllowWriteStreamBuffering = false;
pageRequest.AllowAutoRedirect = false;
pageRequest.ClientCertificates.Add(cert);
postData = "xml_data=" + Server.UrlEncode(postData);
pageRequest.ContentLength = postData.Length;
//Create the Post Stream Object
System.IO.StreamWriter postStream = new System.IO.StreamWriter(pageRequest.GetRequestStream());
//Write the data to the post stream
postStream.Write(postData);
postStream.Flush();
postStream.Close();
//Set the Response Object
HttpWebResponse postResponse = (HttpWebResponse)pageRequest.GetResponse();
