Thank you for being a valued part of the CNET community. As of December 1, 2020, the forums are in read-only format. In early 2021, CNET Forums will no longer be available. We are grateful for the participation and advice you have provided to one another over the years.


CNET Support


Mac address "Inactive", how to fix?

Dec 10, 2017 1:14AM PST

Soo, basically I have got a reason to change my MAC address and every time I do it in the registry or here: and then I check in TMAC and it says the address is inactive.
I can also add I have a Huawei router that's connected to the pc with a mini usb to usb cable, and it is recognised as
Remote NDIS Based Internet Sharing device #2.
I've run out of things to try.

Discussion is locked

- Collapse -
Clarification Request
Windows 10 could use it's random MAC address feature
Dec 10, 2017 9:49AM PST

That's on the web. So I'll pause here.

- Collapse -
It's a win 7
Dec 16, 2017 8:21AM PST

It's a PC with windows 7, I can't and won't install win 10 because HDD is badly corrupted, getting a replacement in march.

- Collapse -
That's not helping you.
Dec 16, 2017 8:50AM PST

Sorry but with a corrupted HDD and well, this could be caused by that. There's a second problem is that it appears you are using virtual devices rather than a real Ethernet NIC or WiFi connection. While I know a bit about networking as I wrote router code in the 90s what you have looks very non-standard. Plus changing your MAC address on the PC won't affect what happens on the Internet link so without a lot more story and links to products so I can see if they document the feature I have to wait till there's more info. This doesn't mean it can be done.

Why not a standard setup?

- Collapse -
Dec 16, 2017 8:59AM PST

It's a temporary fix but for now it works, I unplugged the router, plugged in my phone and enabled usb tethering, it generates a random MAC every reenable of the tethering.

- Collapse -
Dec 10, 2017 1:17AM PST
- Collapse -
Re: Mac address
Dec 10, 2017 1:44AM PST

The best way to change a MAC is to use other hardware. Just buy and install a PCI Ethernet card and you're done.

On the TMAC screen in I see a checkbox to make the changed MAC persistent. If that doesn't work, contact their tech support.