ETHERNET CABLES

@jerrybj 

Thanks for clarifying. Glad to hear it wasn't old 4-cond phone cable from 40 years ago.

@painter24

I've used a similar kit by TP Link between my router feed and Node N130.

The best improvement I achieved with my Node 130 was to replace the AC power board with a DC power board and a 5v iFi audio iPower X Low Noise Power Supply.
 

Bluesound Node 2021 (gen.3) upgrade – low noise PSU interface

I had pops and noises when switching digital sources.   I removed the CAT 8 between Aurender and DAC , problem solved.  Also set up the TP Link rg45 to Optical converters and system is free of pops and noise when switching. 

Someone mentioned CAT 8 is bad for audio a while back.   Apparently the metal shield of the connector can cause problems with audio gear on the network

@oddiofyl 

I had pops and noises when switching digital sources.   I removed the CAT 8 between Aurender and DAC , problem solved

How was your streamer connected to your dac using ethernet cable?

It was the Ethernet from the switch to the Aurender.    Someone mentioned a while back that CAT 8 could cause issues and I said yeah right.  I took it out and the annoying pop when switching digital inputs was reduced greatly to a "tick"