@davetheoilguy Please provide a link to the $13.99 device on Amazon you speak of. I can't find it when I searched for "LAN galvanic isolator" as you suggested.

@boucher in my system I prefer the iSiliencer between the EERO node and the Purist Audio cat7 Ethernet cable that’s plugged into my streamer. 
A lot of variables here though…quality of your streamer and how well the network section of it is isolated, Ethernet cable quality, the rest of your system. The difference the iSilemcer makes in my system is minimal and on some material extremely hard to even detect in an A/B comparison. Give it couple of weeks and if it doesn’t improve send it back if you still can. 

@vinylvalet 

Interestingly, the search results are all different now under that key phrase.

You can still search “Ethernet galvanic isolator” and get good results but “LAN galvanic Isolator”’ gets you to iFi products.  Their marketing guy is clearly savvy and reads internet boards.

Try “Tupavco Ethernet Surge Protector”.  It’s $31 and much nicer with an external ground wire and stronger protection.

The $13 kind are still all over the internet, but they’re at medical supply or Walmart or the like.  

Or thr back floorboard of my wife’s Land Rover.  I think she had about 50 laying there.  Each patient gets 3-4.

Yep, at Walmart:

2X RJ45 Plug Ethernet Network Surge Protector Arrester 100MHz

Two for $14.

Get now before the search terms are tinkered with!

Thanks, Dave.