Yes you can; just manually configure an IP/Subnet address into the NwB and your PC’s Ethernet port, and the two can communicate.
However, there is really no good reason to do that. Common Ethernet Switches are not so “noisy” that they will so easily affect a dCS component’s sound. They don’t.
There’s no reason to complicate your life with such convoluted Ethernet connectivity just because you imagine the Ethernet switch is “noisy” 