Ethernet internet for projector and apple tv
I have a garden room and the wifi buffers occasionally when watching Apple TV via the projector. I have bought a long Ethernet cable which is in the router and the other end is in the projector. The Apple TV is connected to the projector via HDMI cable - am I now receiving internet wired via Ethernet? As it has buffered again? Do I need to put Ethernet into Apple TV instead? what other suggestions please?