Failure to set the local bit can:
When attempting to change the MAC address of a wireless network adapter on Windows, many users encounter failures because modern wireless drivers strictly enforce specific bit patterns in the first octet. The most common fix is setting the second digit of the MAC address to . The First Octet Restriction Failure to set the local bit can: When
signifies it is locally administered. In hexadecimal, this translates to the first octet needing to end in 2, 6, A, or E Hardware Lock or E Hardware Lock