I have my own wifi network at home & recently when I checked the active clients on the wifi I found out the there is one active client. Router shows the MAC address of this client and I want to Access this computer in order to let him know that he's doing a wrong thing. I dont intent to do any harm to his data. I just want to know a method to send him a message saying "Buy you own wifi".
How can I achieve this using a windows 8 computer. Is there any specific softwares that I can use or will the netsend command do the trick!