Winsock none-blocking sockets. Not detecting if port is open or not.

[WetCode]

So today I was a bit bored and was thinking I would have a look at the Winsock.
And I made a port scanner and it works but it was so slow I try to make it faster some answers turned up on Google and I ended up with this.
http://stackoverflow.com/questions/16408057/improving-port-scanner-performance

// Fast but returns false / bad results
DWORD WINAPI ScannTargetNoBlock(Target_IP* target)
{
	u_long on = 1;
	timeval tv = {0, 1000};      //timeout value in microseconds
	fd_set fds;
	FD_ZERO(&fds);

	cout << "// STARTING SCANN OF TARGET " << target->sTargetIP << endl;
	int nTemp = target->nStart_Port;
	while ( nTemp <= target->nEnd_Port )
	{
		SOCKET sock;
		SOCKADDR_IN sock_Info;
		sock = socket( AF_INET, SOCK_STREAM, 0 );
		if ( sock == INVALID_SOCKET )
		{
			cout << "FAILED! To create socket. WSA Error Code: ";
                        cout << WSAGetLastError() << endl;
			cout << "WIN Error Code: " << GetLastError() << endl;
			WSACleanup();
			system("PAUSE");
			return 1;
		}       
		
		FD_SET(sock, &fds);
		ioctlsocket(sock, FIONBIO, &on);

		sock_Info.sin_family = AF_INET;
		sock_Info.sin_port = htons(nTemp);
		sock_Info.sin_addr.s_addr = inet_addr( target->sTargetIP.c_str() );

		connect( sock, (SOCKADDR*)&sock_Info, sizeof(sock_Info));
		int err = select(sock, &fds, &fds, &fds, &tv);

		if ( err != SOCKET_ERROR && err != 0)
			cout << target->sTargetIP << ":" << nTemp << " - open" << endl;
		else
			cout << target->sTargetIP << ":" << nTemp << " - closed" << endl;

		nTemp++;
	}

	return 0;
}

My previous method:

// Working but SO SLOW
DWORD WINAPI ScannTarget(Target_IP* target)
{
	cout << "// STARTING SCANN OF TARGET " << target->sTargetIP << endl;
	int nTemp = target->nStart_Port;
	while ( nTemp <= target->nEnd_Port )
	{
		SOCKET sock;
		SOCKADDR_IN sock_Info;
		sock = socket( AF_INET, SOCK_STREAM, 0 );
		if ( sock == INVALID_SOCKET )
		{
			cout << "FAILED! To create socket. WSA Error Code: ";
                        cout << WSAGetLastError() << endl;
			cout << "WIN Error Code: " << GetLastError() << endl;
			WSACleanup();
			system("PAUSE");
			return 1;
		}   

		sock_Info.sin_family = AF_INET;
		sock_Info.sin_port = htons(nTemp);
		sock_Info.sin_addr.s_addr = inet_addr( target->sTargetIP.c_str() );

		if ( connect( sock, (SOCKADDR*)&sock_Info, sizeof(sock_Info)) != SOCKET_ERROR )
		{
			cout << target->sTargetIP << ":" << nTemp << " - open" << endl;
		} else
			cout << target->sTargetIP << ":" << nTemp << " - closed" << endl;
		closesocket(sock);

		nTemp++;
	}

	return 0;
}

Am I doing something wrong here? As the only IP I can scan witch returns correct result on port scan is 127.0.0.1.
Any other IP local or public IP will give wrong results when using ScannTargetNoBlock(Target_IP* target)

Any ideas?

Cheers
WetCode

[WetCode]

Solution:

	u_long on = 1;
	timeval tv = {0, 900000};      //timeout value in microseconds
	fd_set fds;
	FD_ZERO(&fds);