Every network adapter has a MAC (hardware) address. Windows 11 includes a privacy feature called random hardware addresses that uses a different address on Wi-Fi networks, making it harder to track your device between locations. We cover this built-in privacy option only. Changing a MAC address to get around network access controls, such as MAC filtering or time limits on networks you do not manage, may break network rules or terms of service.
Quick Answer
Open Settings, Network and internet, Wi-Fi, and turn on Random hardware addresses. For one network, open its properties and set Random hardware address to On, Off, or Change daily.
How to Use Random Hardware Addresses on Windows 11
- Open Settings with Windows+I and select Network and internet, then Wi-Fi.
- Turn on Random hardware addresses to use them for new networks.
- For a specific network, click it (or Manage known networks, then the network) and set Random hardware address to On, Off, or Change daily.
- Disconnect and reconnect to the network so the new address takes effect.
- To confirm, open Terminal and run ipconfig /all, then check the Physical Address line.
Random Address Options
| Setting | Effect |
|---|---|
| Off | Uses the adapter’s built-in address |
| On | Uses a random address for that network |
| Change daily | New random address each day |
| Ethernet | Randomization is generally for Wi-Fi |
Troubleshooting
- The option is missing: your Wi-Fi adapter or driver may not support it. Update the driver from the manufacturer.
- A home network stops recognizing you: routers with device reservations or parental controls may need the address updated, or turn randomization off for that network.
- To find your current address, see how to check the MAC address on Windows.
- For another method, read how to find your Windows MAC address.
Frequently Asked Questions
Is using a random hardware address legal?
Yes. It is a built-in Windows privacy feature. Using it to evade restrictions on networks you do not own is a different matter.
Will it break my home network?
Usually not, but router settings tied to your old address may need updating.
Does it hide my identity online?
No. Websites see your IP address, not your MAC address. It mainly limits tracking by local networks.
Summary
- Open Settings, Network and internet, Wi-Fi.
- Turn on Random hardware addresses.
- Set per-network options if needed.
- Reconnect and confirm with ipconfig /all.
Kermit Matthews is a freelance writer based in Philadelphia, Pennsylvania with more than a decade of experience writing technology guides. He has a Bachelor’s and Master’s degree in Computer Science and has spent much of his professional career in IT management.
He specializes in writing content about iPhones, Android devices, Microsoft Office, and many other popular applications and devices.