Ethernet

Yes ,but several factors , go to blue jeans cable and buy Beldons best Ethernet cable ,your rougher needs to have a LPS power supply ,that $5 wall wart just ads noise , then you need a decent quality Ethernet hub  LHY 6  perfect for you 

nothing at under $600 has. Precision clock ,LPS power supply and low noise regulstors, the cheapo $20 are junk and just make more noise ,your end point 

Ethernet cable to your dac is most important  depending on budget,

Wireworld make a decent one for under $250 then you will hear nice improvements 

@audioman58 

"Ethernet cable to your dac"???   Is that what you really meant to write?

From your Ethernet hub like the LHYsw6  the end Ethernet  cable that goes to your digital source , That cable should be by far your best ,and makes the most difference.

@hjdca 

Wow ! Thank you for your generosity of sharing this! I was told it was not possible. Eero tech told me it would work for a few hours, perhaps days then an error message would show on the Eero. Maybe its just the Eero 7 Max. Ive been banging my head trying to figure this out. I am so glad there people out there smarter than me. lol/ May I ask what 2.5mm DC audiophile cable you used? I am new to this and as I mentioned thankful. 

@richardnyc2 

I ordered the cable and adapter through Amazon.  It checked my order and I ordered the 2.1mm version.  This cable has options for 1 meter, or 2 meter, or combinations of 2.1mm and 2.5 mm..  So depending on your LPS and adapter, order accordingly.  

Here is the cable I ordered:

DC Cable 4N 99.998% Pure Silver HiFi Audio DC Power Cable DC Extension Cord 5.5mm x 2.1mm 12V 0.5A High Purity OFC Audiophile Power Cord for Audio,Speakers, Subwoofers, Home Theater,Amp（2M/6.6Ft）
Sold by: Monosaudio

Here is the adapter I ordered.

for Starlink Mini Power Cable USB C to DC Adapter, Type-C Male to DC Female Power Cable Adapter, DC Female 5.5x2.1mm, for Starlink Mini, for 20V/65W+ Type-C PD Power Supply (2Pack)
Brand: caojunzhen