connection was closed: An unexpected error on receive

Question

Hi all,

 

C# HttpWebRequest The underlying connection was closed: An unexpected error occurred on a receive.

 

trying all the solutions but not get the solution.

 

OS: Windows 10 pro

 

server support this TLS version

 

1st method

public void GET_request()
{
ServicePointManager.SecurityProtocol = SecurityProtocolType.Tls | SecurityProtocolType.Tls11 | SecurityProtocolType.Tls12
 HttpWebRequest req = (HttpWebRequest)(HttpWebRequest.Create(url));
 req.Method = "POST";
 req.KeepAlive = false;
 req.ContentType = "application/xml";
 req.ProtocolVersion = HttpVersion.Version10;
 req.Headers.Set(HttpRequestHeader.Authorization, "Basic abcd15243");
string content = XDAuth.OuterXml;
req.ContentLength = content.Length;
Stream wri = null;
using (wri = req.GetRequestStream())
{
byte[] array = Encoding.UTF8.GetBytes(content);
wri.Write(array, 0, array.Length);
}
wri.Flush();
wri.Close();
string resultData = "";
using (HttpWebResponse HttpWResp = (HttpWebResponse)req.GetResponse())
{
int resCode = (int)HttpWResp.StatusCode;
using (Stream stream = HttpWResp.GetResponseStream())
{
using (StreamReader reader = new StreamReader(stream))
{
resultData = reader.ReadToEnd();
}
}
}
}

2nd method

protected override WebRequest GetWebRequest(Uri address)
{
WebRequest webRequest = base.GetWebRequest(address) as WebRequest;
if (webRequest == null)
{
return base.GetWebRequest(address);
}
webRequest.Method = "POST";
webRequest.ContentType = "Application/xml";
webRequest.Headers.Set(HttpRequestHeader.Authorization, "Basic abcd15243");
//webRequest.CookieContainer = Cookies;
return webRequest;
}