The first three octets (e.g., 2C:54:91 ) represent the , which identifies the manufacturer of the network interface. The last three octets are the device-specific serial number.
xxxx xx1 0
Discussions on forums like Reddit suggest that having multiple adapters selected or corrupted configuration files can also trigger false failures. If you'd like, I can help you: The first three octets (e
A very small number of wireless chips (some old Broadcom and Ralink) locally administered MACs at all. In that case, you cannot change the MAC address on that adapter—only Ethernet works. The first three octets (e.g.