Failed To Change Mac Address For Wireless Network Connection Set The First Octet Work [hot] Jun 2026

What (Intel, Realtek, MediaTek) are you using? Which version of Windows is running on your machine?

Double-click NetworkAddress and enter your new 12-digit MAC address. Remember to make the second character 2 , 6 , A , or E .

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If the correct octet still doesn't work, your specific driver or hardware may have further hard-coded restrictions against MAC rotation. AI responses may include mistakes. Learn more

00:XX:XX:XX:XX:XX (Attempts to use a global unique manufacturer address) How to Fix: Step-by-Step Remember to make the second character 2 , 6 , A , or E

Knowing the rule, you have three main paths to a solution. Your choice will depend on how important it is for you to use your exact, specific MAC address versus any valid one.

Right-click on your wireless network card (e.g., Intel Wi-Fi 6E AX211 or Realtek Wireless LAN ) and select . Step 2: Configure the Value Navigate to the Advanced tab. If you share with third parties, their policies apply

However, there is a specific bit in the (the first two characters) that determines if the address is a "universally administered address" (burned into the card by the factory) or a "locally administered address" (manually set by you).

A MAC address consists of six pairs of hexadecimal digits (e.g., 02:1A:2B:3C:4D:5E ).

Are you missing the entirely in your settings?

This requirement ensures the address is flagged as a "locally administered address" rather than a globally unique one assigned by the manufacturer. Step-by-Step Fix via Device Manager