You are running on a new 7,1 Mac Pro correct? If so, you need to use an external USB-C to Ethernet adapter if you want to run Dante Virtual Soundcard. It is a known issue with Audinate regarding the built-in 10G Ethernet ports. I believe that would explain your DVS Dante issues.
Many different version of these work including these:
https://www.apple.com/shop/product/H...hernet-adapter
Let us know.
Jeff