After playing around with this for a bit I'm seeing that my only NIC (the USB Nic) is showing as IOBuiltin as false under NetworkInterfaces.plist. Even setting it to True and rebooting sets it back to false.
I guess my ask here is how do I make this USB Nic set to true for IOBuiltIn? I do have EthernetBuiltin option set. What DSDT modifications do I need to do?
Edit: I dumped another DSDT using Ubuntu Live CD but when I use this DSDT I get a kernel panic about 10 seconds or so after the desktop is shown. I also did not see any reference to any RealTek devices (not my USB Nic nor my Audio chipset).