Greetings, I have multiple NanoPi NEO3s on the same subnet. When booting with Ubuntu 20.04.6 LTS they use the physical MAC address when posting to DHCP, but ARMbian seems to create a default (fake) MAC address and uses that instead. Judging by the "armbianmonitor -U" output, ARMbian knows about the physical MAC address, it just doesn't use it. The NEO3 board is listed as supported, but there is another posting dated 2020 that still seems to be unresolved.   MAC address c2:1f:b3:b0