@pcolvin I agree that a wired connection is preferable, but this is not an ABSOLUTE statement. It depends entirely on your gear and your environment. I get EXACTLY the same low error rate and retransmission rate with both my eero mesh network (6 radio-routers in my mesh, line of sight between the long runs, and sparse channel usage -ie, ration congestion- in my rural location) --as I do with my cat 6 wired direct from the ISPs router in my home. When I say exact, the numbers vary over time but statistically equivalent. This is the ONLY factor I care about in the transmission of streaming data or any other internet usage, as the protocols take care of everything else.
The question here in this thread was "is one better". Again, it will vary according to your network gear and your environment.
I'll say again, "audio grade" is complete nonsense when it comes to networking. You are overpaying for a lesser solution THAN an "air gap" or galvanic isolation just before the audio input.

