How do I switch from Wi-Fi to Ethernet cables?

I use the TP Link Power Line adapters and they work great .  From the TP Link  AC adapter I run ethernet cable to a TP Link switch.  The switch has two SFP fiber optic ports.   I use a fiber optic media converter for my Vault and another one to my Aurender N200.   Works great, quiet, you would never know i am running an ethernet over AC adapter.

Anyone use two Apple AirPort AirPort Extremes as a WiFi mesh setup? One hardwired to the router & communicating with a second in their audio room? That's what I use with quality cat 8 cable. Wondering what, if any, the limitations are in this type of mesh network?

So many people commenting, so few facts and so little knowledge, really sad.

First, Wi-Fi is wireless Ethernet. So the medium changes. But the same protocol.

Second, properly designed Wi-Fi can support almost all applications, outside multi-gigabit transfers and systems they use. 

Third, Cat8 cables are made for 10G and above, and so far no consumer grade streamer supports those speeds.

Fourth, a fundamental concept of Ethernet is that as long there is stable connection, your data is transferred 100%. 
 

Fifth, streaming from Qobuz, Tidal, and others are actually not streaming, they are download at maximum available speed, and then that song is stored in a cache for future playback. This fact alone 100% invalidates any and all “Ethernet upgrades”.

@fredrik222 

Thanks for this, I am a 100% with you.

The OP says that 'his' wifi has no dropp outs. Therefore, no need to change anything.

BDW, I am using both ways, cable and wifi to hear music from Quobuz. I cannot hear any difference in sound quality.

@yage 

Banking is undoubtedly an important actvivity, but one doesn’t need ultra reliable digital information transferance to achieve it.  Correct perception of sound is a different process, where a few microseconds in timing can affect the architecture of the data read.

  Wired is better, but it’s a matter of degree, not a night and day difference if one has optimized their WiFi setup