Why do I need a switch?

I use a Netgear PL1200. Then I run to a netgear 5 port switch. It sounds great. You can get faster models of this type if you want.

https://www.amazon.com/NETGEAR-PowerLINE-Gigabit-Pass-Through-PLP1200-100PAS/dp/B00S6DBGIS/ref=asc_df_B00S6DBGIS?tag=bngsmtphsnus-20&linkCode=df0&hvadid=80814222102152&hvnetw=s&hvqmt=e&hvbmt=be&hvdev=m&hvlocint=&hvlocphy=&hvtargid=pla-4584413749440857&psc=1#

There are other brands too, but the Netgear network through AC wire has been solid, easy to setup with pressing two buttons. One at the router and then at the Streamer location or desired device. This is not Audiophile stuff, but let me tell you it would be worth the cost to see if it meets your needs. I am very picky, not a critic, I just love HI Fi accurate sound and excitement from music. It sounds very good. It comes back with no intervention after a power outage. It just works slick. I have had flawless sreaming for 2 years now. A use the netgear switch to go between my Innous Mini Mk III, and a bluesound 2i.

I use a netgear pl1200 lan and a 5 port netgear switch and it sounds great. Go by what you hear, not what people say. If you have a large income and want an expensive network, then ok. It may or may not help the sound. I think your 8 port switch is ok if gigabit. The Electronics of the streamer does the work as long as the bandwidth is good, and you use a decent DAC. Wireless is not as good as wired.