Failed To Change Mac Address For Wireless Network Connection Set The First Octet — Work [upd]

The error specifically mentions the "first octet" because the first byte of a MAC address determines how the network interprets the device.

Technitium MAC Changer, input 00:11:22:33:44:55 → tool auto-changes to 02:11:22:33:44:55 → Success. The error specifically mentions the "first octet" because

Let’s decode that last point with an example. etc. On :

The first octet of a locally administered MAC address must be in the form of x2 , x6 , xA , or xE in hexadecimal (where x is any hex digit). Acceptable examples: 02 , 06 , 0A , 0E , 12 , 16 , 1A , 1E , 22 , 26 , 2A , 2E , etc. The error specifically mentions the "first octet" because

On :