Try buying quality usb cables and Ethernet , at leasta$200 ontherouterend
like a wire world starlight, the most critical is at the end point
final touch audio Callisto a very natural sounding usb cable ,about $850
A bargain . A AQ Diamond on the Ethernet end point is a very solid Ethernet cable
a bit smoother the theWireworld and much better connectors telegartner s
everything counts throughout , I have tried. Any combinations
even the fiber optic single mode transceivers hood ones are 50-$100 each which are very important in signal accuracy.