WSA Connection refused even though the host is not present - c

Question

I'm writing a code to discover the devices on the network and this is just a part of it.
I'm trying to discover a host by establishing an socket connection with the host on port 80.
It connects well on some of the hosts on port 80 as the devices are listening on port 80. At times the connect function returns error as WSACONNECTIONREFUSED as there is no web service running on the host.
It is surprising to see that when i try to establish an socket connection on invalid ip addresses I get WSACONNECTIONREFUSED instead of WSAETIMEDOUT.
I googled and found out that the antivirus and firewall can cause the problems and i have disabled both on the scanning machine but no luck what could be causing the problem?
I have posted the code below:
#ifndef UNICODE
#define UNICODE
#endif
#define WIN32_LEAN_AND_MEAN
#include <winsock2.h>
#include <ws2tcpip.h>
#include <stdio.h>
#pragma comment(lib, "ws2_32.lib")
int main()
{
WSADATA wsaData;
int iResult = WSAStartup(MAKEWORD(2, 2), &wsaData);
if (iResult != NO_ERROR)
{
wprintf(L"WSAStartup function failed with error: %d\n", iResult);
return 1;
}
SOCKET ConnectSocket;
ConnectSocket = socket(AF_INET, SOCK_STREAM, IPPROTO_TCP);
if (ConnectSocket == INVALID_SOCKET)
{
wprintf(L"socket function failed with error: %ld\n", WSAGetLastError());
WSACleanup();
return 1;
}
sockaddr_in clientService;
clientService.sin_family = AF_INET;
clientService.sin_addr.s_addr = inet_addr("192.168.4.28"); //No Host by this ip address
clientService.sin_port = htons(80); //Port is 80
iResult = connect(ConnectSocket, (SOCKADDR *) &clientService,
sizeof(clientService));
printf("The socket connect return status : %d ", iResult);
if (iResult == SOCKET_ERROR)
{
wprintf(L"connect function failed with error: %ld\n", WSAGetLastError());
iResult = closesocket(ConnectSocket);
if (iResult == SOCKET_ERROR)
wprintf(L"closesocket function failed with error: %ld\n",
WSAGetLastError());
WSACleanup();
return 1;
}
wprintf(L"Connected to server.\n");
iResult = closesocket(ConnectSocket);
if (iResult == SOCKET_ERROR)
{
printf("\n socket Connection failed ");
WSACleanup();
return 1;
}
WSACleanup();
return 0;
}