As great as WiFi is today, there’s a good chance it could be slowing down your media, even if you buy network extenders and faster modems.
Why?
Devices that are wirelessly connected to a router are unable to receive data as quickly as devices that are connected via Ethernet cables, which help maintain the router’s speed.
Without an Ethernet cable, a 10 Mb/s router may only deliver half that speed to your computer, forcing media players to downgrade your video quality.
This tip works best if you’re streaming on a computer; most mobile devices don’t support Ethernet without an adapter.