Router Ethernet Cable to Streamer


In my house, the wifi router is 25 feet away from my components. I plan running cat8 underneath the base board as hiding cable above or below room, side walls, exterior cable are not options. Picked a relatively cheap cable to try out first.

Cat 8 Ethernet Cable 30 ft, 26AWG Nylon Braided High Speed Heavy Duty ... https://www.amazon.com/dp/B089B2YP77/ref=cm_sw_r_sms_api_glt_fabc_TJA5SW4HNFZ0F14K8WVA

Is it possible to decrease potential electrical noise introduced by the AT&T wifi router with a better router next in the chain? If so, any recommendations? Also, has anyone had success/noticed a discernible difference in SQ by introducing something such as a LAN isolator right before the streaming source? Any constructive feedback or request for additional applicable situational information is welcome. Thanks. 

ggecas2
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Versions of this discussion can be found on this forum and the recommendations are all over the place so you may want to do a search.  Like @ozzy, my longest run (15M) from my router is fiber using TP Link converters and short runs of CAT 8 at the ends.  I will add that you should take a look at the LC vs. SC versions of fiber cable and connectors since the LC is quite a bit smaller and just as good for what you are doing, if the size of the cable/connectors matters to you. Also, the dual connectors come apart if you need to route them through small holes.  However, the converter jacks must match the cable you use.  Last thing, there are more than a few here who believe Ethernet cable is a better option and others who don’t think  it matters.
Thanks so much @ozzy @mitch2 @mike_in_nc Appreciate all the advice. Very helpful. 
@mitch2 ,
Nice post.
Have you noticed an improvement using the TP Link Converters?
Bob
Hi @mitch2 & @ozzy -  Excuse the remedial question to confirm. So Ethernet to TP Link Converter > Fiber > TP Link Converter > smallest run of Ethernet into streamer is what your suggesting? These examples will do?

FiberCablesDirect - 8M OS2 LC LC Fiber Patch Cable | Duplex 9/125 LC t... https://www.amazon.com/dp/B0099S4UTQ/ref=cm_sw_r_sms_api_glt_fabc_FHVQ80HED9QPNACBKDG6

TP-Link Gigabit SFP to RJ45 Fiber Media Converter, Fiber to Ethe... https://www.amazon.com/dp/B003AVRLZI/ref=cm_sw_r_sms_api_glt_fabc_77JGPDGA30AETW3ZW506?psc=1