Problem Lan Network rj45 in banana pi m6

Hi, I just got my Banana Pi m6, and it has really good hardware, but I’ve noticed a problem running the Ubuntu distribution on different builds. The LAN adapter isn’t working. I’ve modified etc/network and added both DHCP and a static IP, but I don’t get any results even after restarting the service via systemd. Could you tell me what the problem is with the LAN adapter? The activity LEDs aren’t turning on.

My revisión board is V1.1

They forgot to enable it in the device tree… You just need to add it to the DTS and then ip link set eth0 up … they seem to have been only concerned with getting the RTL8822CE wifi working on the Ubuntu build. And as usual, no documentation whatsoever. I forget exactly what I did, but I can dig it up since I think i kept the SD cards

Thank you very much for the solution.