I have my desktop PC connected to my TrueNAS box via both regular 1GbE via switch and a direct 10GbE link. I experienced similar issues where sometimes Windows

I have my desktop PC connected to my TrueNAS box via both regular 1GbE via switch and a direct 10GbE link. I experienced similar issues where sometimes Windows would pick the sub-optimal interface. I decided to brute force it, by editing my hosts file on Windows and adding a custom entry for the static IP assigned to the 10GbE adapter in TrueNAS. So if my NAS was named "mynas" I'd add a "mynas10" entry in hosts file.