yer a wizard
@moomshooter ! Thank you!
So in summary. The I225-V does indeed need vt-d to not mess with applevtd (or at least LRC needs it). You can fix you'r tables or if you don't want to hassle seems like just enabling the ethernet properly on Mac OS will do as well.
What I did -
Enabled LAN in bios - check the device path of the I225-V (Hackintool is good for that). Added the device path to OC/Config/DeviceProperties and added device-id data F3158680. Added AppleIntelI210Ethernet.kext (attached here) to OC structure and added e1000=0 to boot-args. Cleaned NVRAM (don't know if needed) and booted.
LRC 12.1 works again like a charm.