UDP broadcast receiver problem for PC in different domain or with wifi connection

Hi,
 

While try to receiving data using UDP brodcast unable to get response from specific type of work stations like,
 
- If laptop in same network connected through wifi connection in network.
- Or PC in same network but in different domain.
 
If PC in same domain and connected through lan receiver is able to receive data but else it will not able to receive data.
 
Code...

Socket lReceiver = new Socket(AddressFamily.InterNetwork, SocketType.Dgram, ProtocolType.Udp);
 
 IPEndPoint lReceiverIP = new IPEndPoint(IPAddress.Any, RECEIVER_PORT);
 
                //Start Receiver To receive Data
                lReceiver.Bind(lReceiverIP);
 while (true)
                {
if (lReceiver.Available > 0)
                    {
 

}
}

Thanks in advance,
Brinda