Forgot to mention another thing to try would be to get a Wi-Fi extender or Mesh system....
I need to try this. I have read this a few times over the past while.
About a year ago I removed the router from my hi fi room to eliminate unnecessary wifi waves near the components (ethernet cable connection to the streamers, not wifi), and replaced it to the upper floor of the house. But then thought I am using an iphone as a remote controller in the room anyway, and of course there are hundreds of frequencies of electromagnetic interference travelling through our rooms, components and brains continuously all the time, so unless one wanted to build a hifi room inside a faraday cage, and not use wifi controllers, I think the point is mute.
Therefore, there should be no difference having an auxillary wifi extender, (or a sub-router essentially?) somewhat near the hifi > sotm ethernet > streamer, instead of the 50' long piece from the upstairs router into the etherregen > sotm > streamer, and comparing that. Then comparing inserting the etherregen, or Cisco switch, between extender and streamer. Hmmm.
Any suggestions for extender models/brands?