Winhttp repsonse it return (timeout) 12002 instead of 200

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C++

// winhttpcalltest.cpp : Defines the entry point for the console application.
//

#include "stdafx.h"
#include <windows.h>
#include <winhttp.h>
#include <stdio.h>
#include <iostream>
using namespace std;
#include <string.h>
#pragma comment(lib, "Winhttp.lib")

int _tmain(int argc, _TCHAR* argv[])
{
	
	DWORD dwSize = 0;
    DWORD dwDownloaded = 0;
	DWORD dwError = 0;
    LPSTR pszOutBuffer;
    BOOL  bResults = FALSE;
    HINTERNET  hSession = NULL, 
               hConnect = NULL,
               hRequest = NULL;

    // Use WinHttpOpen to obtain a session handle.
	std::wstring strUserAgent;
	strUserAgent = L"NETIQ AppManger";
	hSession = WinHttpOpen( strUserAgent.c_str(),  
                            WINHTTP_ACCESS_TYPE_NO_PROXY,
							NULL, 
                            NULL, 0);

	//settime option
	BOOL bReturn = WinHttpSetTimeouts(hSession,     // HINTERNET hInternet,
                                          12000,   // int dwResolveTimeout
                                          12000,   // int dwConnectTimeout
                                          12000,   // int dwSendTimeout
                                          12000);  // int dwReceiveTimeout


    // Specify an HTTP server.
    if (hSession)
        hConnect = WinHttpConnect( hSession, L"cucm11-5",
                                   8443, 0);

    // Create an HTTP request handle.
    if (hConnect)
        hRequest = WinHttpOpenRequest( hConnect, L"GET", L"ccmadmin",
                                       L"HTTP/1.1", NULL, 
                                       NULL, 
                                       WINHTTP_FLAG_SECURE);

	unsigned long ulngSecurityOptions = 0;
    unsigned long ulngSecurityOptionLen = sizeof(ulngSecurityOptions);

    bReturn = WinHttpQueryOption(hRequest,
                                     WINHTTP_OPTION_SECURITY_FLAGS,
                                     &ulngSecurityOptions,
                                     &ulngSecurityOptionLen);

     if (bReturn)
        {
            ulngSecurityOptions |= SECURITY_FLAG_IGNORE_CERT_CN_INVALID |
                                   SECURITY_FLAG_IGNORE_CERT_DATE_INVALID |
                                   SECURITY_FLAG_IGNORE_CERT_WRONG_USAGE |
                                   SECURITY_FLAG_IGNORE_UNKNOWN_CA;

            bReturn = WinHttpSetOption(hRequest,
                                       WINHTTP_OPTION_SECURITY_FLAGS,
                                       &ulngSecurityOptions,
                                       ulngSecurityOptionLen);
        }

		std::wstring strRequestHeader;
		std::wstring strRequestContent;
		strRequestHeader = L"https://cucm11-5/ccmadmin";
		strRequestContent = L"";
        bResults = WinHttpSendRequest( hRequest,
										strRequestHeader.c_str(),
										(unsigned long)strRequestHeader.length(),
										(LPVOID)strRequestContent.c_str(), 
										(unsigned long)strRequestHeader.length(),
										(unsigned long)strRequestHeader.length()+
										(unsigned long)strRequestContent.length(), 
										0);

 
    // End the request.
    if (bResults)
        bResults = WinHttpReceiveResponse( hRequest, NULL);

	 unsigned long ulngStatus = 0;
        unsigned long ulngStatusSize = sizeof(ulngStatus);
        if (bResults) {
            bResults = WinHttpQueryHeaders(hRequest,
                                          WINHTTP_QUERY_FLAG_NUMBER | WINHTTP_QUERY_STATUS_CODE,
                                          0,
                                          &ulngStatus,
                                          &ulngStatusSize,
                                          NULL);
		}

		printf( "Error Status Code - %d and last error \n", ulngStatus);
    // Keep checking for data until there is nothing left.
    if (bResults)
    {
        do 
        {
            // Check for available data.
            dwSize = 0;
            if (!WinHttpQueryDataAvailable( hRequest, &dwSize)) 
            {
                printf( "Error %u in WinHttpQueryDataAvailable.\n",
                        GetLastError());
                break;
            }
            
            // No more available data.
            if (!dwSize)
                break;

            // Allocate space for the buffer.
            pszOutBuffer = new char[dwSize+1];
            if (!pszOutBuffer)
            {
                printf("Out of memory\n");
                break;
            }
            
            // Read the Data.
            ZeroMemory(pszOutBuffer, dwSize+1);

            if (!WinHttpReadData( hRequest, (LPVOID)pszOutBuffer, 
                                  dwSize, &dwDownloaded))
            {                                  
                printf( "Error %u in WinHttpReadData.\n", GetLastError());
            }
            else
            {
                printf("%s", pszOutBuffer);
            }
        
            // Free the memory allocated to the buffer.
            delete [] pszOutBuffer;

            // This condition should never be reached since WinHttpQueryDataAvailable
            // reported that there are bits to read.
            if (!dwDownloaded)
                break;
                
        } while (dwSize > 0);
    }
    else
    {
        // Report any errors.
        printf( "Error %d has occurred.\n", GetLastError() );
    }

    // Close any open handles.
    if (hRequest) WinHttpCloseHandle(hRequest);
    if (hConnect) WinHttpCloseHandle(hConnect);
    if (hSession) WinHttpCloseHandle(hSession);

	getchar();
	return 0;
}

What I have tried:

Am trying to connect "https://cucm11-5/ccmadmin"
The response received is 12002 but actually URL should return 200 which works with postman and browser.

Am new to winhttp, is that am missing any ?

i tried the following but still not resolved issue
- increasing set timeout values
- tried with IP instead of hostname