HttpWebRequest. The remote server returned an error: (500) Internal Server Error

I need help with HttpWebRequest in C#. Below lines of codes are working fine for local IIS but when I upload to remote server, it starts to giving me "The remote server returned an error: (500) Internal Server Error.". I have try many variations with GET and POST method but unable to figure it out what is the problem. Please have a look into below code and let me know what is wrong with this. ``` try { string postData = "applicaitonid=abc&deviceid=xyz"; string uri = System.Configuration.ConfigurationManager.AppSettings.Get("baseUrl") + System.Configuration.ConfigurationManager.AppSettings.Get("ABApiPath") + "ConfirmAppBinding/?" + postData; System.Net.HttpWebRequest request = (System.Net.HttpWebRequest)WebRequest.Create(uri); request.Method = "POST"; // Set type Post //request.Method = "GET"; request.UserAgent = Request.UserAgent.ToString(); request.ContentType = @"application/json"; request.MediaType = "application/json"; request.Accept = "application/json"; request.KeepAlive = false; request.ProtocolVersion = HttpVersion.Version11; //byte[] buffer = Encoding.GetEncoding("UTF-8").GetBytes(postData); request.Timeout = 500000; //Increase timeout for testing Stream reqstr = request.GetRequestStream(); //reqstr.Write(buffer, 0, buffer.Length); reqstr.Close(); // Read Response var httpResponse = request.GetResponse(); using (var streamReader = new StreamReader(httpResponse.GetResponseStream())) { JavaScriptSerializer jsSerializer = new JavaScriptSerializer(); JsonMessage.message = streamReader.ReadToEnd(); streamReader.Close(); } } catch (WebException e) { JsonMessage.message = e.Message; return Json(JsonMessage, JsonRequestBehavior.AllowGet); } ``` As I told you, I have used default GET method but it didn't solve the problem.