Range extenders worked for a few years, but as more devices use the wifi in my home, I started to have drop outs. TP Link power extenders got that fixed for a few years, while the Internet service went from 10 to 50 to 350 GHz, but drop outs returned. So I got the TP Link AV2000 Powerline extenders. Problem solved, for a while I guess.
Concerning sound quality, I hear no difference between Qobuz streaming and same songs locally stored on my Aurender. I also added LHY Switch and DH Ethenet cables. Again, maybe a very small decrease in listening fatigue, but I am not even sure the network is the cause.
I think the Aurender does a great job with network streaming. I don't see any other explanation.