My stepbrother is getting an Xbox One for his birthday and I suggested getting a powerline adapter or a long ethernet cable. My stepdad heard and is now telling me that he shouldn't as they take priority over wifi so it will impact his devices somehow. I've found sources saying that they're different types of connection so it won't and that it would be better for him to get ethernet as getting wifi will be on the same bandwidth and that would affect it. He's under the impression that the ethernet gets its data first somehow, making the wifi devices slower and have less bandwidth. I don't really understand what he means but that's all he's saying. I'll try to clarify if you need.