Web Request error 407 Proxy Authentication Required

Trying to GetResponse From a web site;

using System.Text;
using System.Net;
using System.IO;

namespace DutyPharmacy751013
{
class Program
{
    static void Main(string[] args)
    {
        HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://www.google.com/");

        HttpWebResponse response = (HttpWebResponse)request.GetResponse();

        Encoding encoding = Encoding.GetEncoding(response.CharacterSet);

        Stream stream = response.GetResponseStream();
        StreamReader reader = new StreamReader(stream, encoding);
        string responseText= reader.ReadToEnd();
    }
}
}

This code is working on win7 and LAN
and on win8 and any of wireless connection
but doesn’t work on win8 and LAN error: 407 Proxy authentication required.
Is there any solution.
Thanks.

Answers:

Thank you for visiting the Q&A section on Magenaut. Please note that all the answers may not help you solve the issue immediately. So please treat them as advisements. If you found the post helpful (or not), leave a comment & I’ll get back to you as soon as possible.

Method 1

try with adding proxy credentials to request and also give network credentials

HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://www.google.com/");
request.Credentials = new NetworkCredential("username", "pw");

WebProxy webProxy = new WebProxy("http://myproxy.net:8080/", true)
         {
             Credentials = new NetworkCredential("username", "pw"),
             UseDefaultCredentials = false
         };

request.Proxy = webProxy;
HttpWebResponse response = (HttpWebResponse)request.GetResponse();

//rest of the code...

Edit

For requests that you create, you can disable automatic proxy detection at the request level by using a null Proxy with your request

HttpWebRequest request = (HttpWebRequest)WebRequest.Create("http://www.google.com/");
request.Proxy = null;
//rest of the code

Method 2

WebProxy webProxy = new WebProxy("http://myproxy.net:8080/", true)
     {
         UseDefaultCredentials = false,
         Credentials = new NetworkCredential("username", "pw")

     };

Please note Correct sequence to set property {other wise failed for me}

All methods was sourced from stackoverflow.com or stackexchange.com, is licensed under cc by-sa 2.5, cc by-sa 3.0 and cc by-sa 4.0