Ur4ela @ 01.05.19, 22:02
Here is the output from macserial
If the network card is not native, it is possible, ROM (MAC-address of the network card) somewhere on Apple's servers does not pass the validity.
Himself faced this. While ROM, and at the same time MLB, didn’t squeeze from the real MacBookAir in the config.plist, I received the same error window.