How to connect to a LAN minecraft world?

My sister and i want to play minecraft together but everytime i try to join her world the connection times out or it doesn't even show her world and then when she tries to join me my world doesn't show
we both have real minecraft accounts and we've managed to play before
and i don't know if this has anything to do with it but i bridged a connection on my laptop so i could connect it to my xbox
please help me i've been trying to play with her for a couple of months and i haven't been able to thanks in advance.