Noisy ethernet cables

@joeyfed55 

Just a guess the stock cable is not a shielded Ethernet cable. All the other cables you mentioned in your OP and post are shielded.

Your problem may be caused by a ground loop. The RJ45 shielded plugs on each end of the shielded cable(s) are connected at both ends to the shield.

Get the best  unshielded Cat 6 you can find and call it a day.

I have very good experiences with the sotm cat7 Ethernet cables, they have a buildin filter:

https://www.sotm-audio.com/sotmwp/english/portfolio-item/dcbl-cat7e/

Also using an isolation trafo is useful:

https://www.sotm-audio.com/sotmwp/english/portfolio-item/iso-cat7/

and of course powering all components in your digital rig with linear power supplies is a must...

What kind of "noise" are you getting?

So, turns out it was a grounding issue. The Node2 was plugged into a Shunyata Typhon/Triton Hydra stack along with the Pass XP-25 phono stage and when I unplugged the Pass it disappeared. The Node2 is plugged in elsewhere and it sounds fine. Thanks for the replies!