i use wifi from an apple router a floor above my ps4 and somehow have, like, a 10 ping. i cant use ethernet because, like i said, the only optimal place i can have my router is a floor above me and stringing an ethernet cord across, like, 7 walls upstairs, down the stairs, and down the hall to the ps4 would be awkward, a lot of work, and expensive. i never lag, and the only time i get error coded its an issue that other people are also getting. idk how. dont ask me.