Pretty much everyone reported positive results from trying ENO passive filter. You can give it a shot and see if you can hear improvements over Alan Maher Ethernet cable. Another option to improve N150 is swapping out the stock fuse. All of my digital components have HiFi Tuning Supreme Cu Audiophile Fuses. Check it out,
https://www.vhaudio.com/hifi-tuning-supreme-cu.html
Shunyata Taipan is a good PC. Keep that for now and try the other things I’ve suggested. Good luck!