While using my samsung smart tv I received a request to start screen mirroring with another device located somewhere outside my apartment suite. I denied the request but I was concerned that somebody could send my tv a request like this. The model of the number of the device was stored in the tv so I searched it and found it was a galaxy tablet. Does a samsung phone or tablet have to be connected to my home network to request a screen mirroring session with my tv or can any device in range find my tv and make the request? My main concern is the possibility of an unauthorized person being on my network. The e-manual on my tv does not indicate that the requesting phone/tablet needs to be connected to my home network but I just want to be on the safe side.