I stream 4k over wireless with no problem
Router is upstairs, main tv is downstairs
I get ~150 download over wifi in the living room
Box has a speedtest app on it, as long as you're getting 100+ over wifi you should be fine
That said, if you can hard-wire it to router that is ideal. Just not an option for me.
I'm only getting 65 MB per sec... I need to call Suddenlink and see what can be done about that...