yes.... its working now... i didnt realize that i had to reboot for it to go into effect....thanks

Did you try the instructions HERE, and modify them to make sure the second digit of the MAC address is 2?

I am running Windows 7 64bit with the 5100 AGN Card. I can't seem to get the MAC Address to change, I loaded the older driver (Intel 12.0.0.82) but I still don't see the ability to change the mac address using third party utilities or anything else..... if someone else with similiar configurations could help, it would me much appreciated!

thanks

Nevermind. I was going through the three older drivers that I have to get firm details on how everything responds. First, I'll give the details of what I found.

I had two older Intel drivers intended for XP. Turns out, they were the same driver but included different application versions.

Driver: Intel 12.0.0.82
Able to change MAC? Yes
Packets: Sent = 210, Received = 201, Lost = 9 (4% loss),
Approximate round trip times in milli-seconds:
Minimum = 1ms, Maximum = 79ms, Average = 6ms

Next, I tried the built in driver with Windows 7.

Driver: Microsoft 12.4.1.4
Able to change MAC? Yes
Packets: Sent = 157, Received = 112, Lost = 45 (28% loss),
Approximate round trip times in milli-seconds:
Minimum = 0ms, Maximum = 2461ms, Average = 185ms

Driver: Intel 13.0.0.107 (most current)
Able to change MAC? Yes
The packets were perfect.

With both of these I used the following MAC addresses:
Successfully changed to: 12-12-45-E5-24-9C, 12-00-45-E5-24-9C, 02-8E-45-E5-24-9C
Unsuccessfully changed to: 00-12-45-E5-24-9C

It seems as others have said it must be in a x2-xx-xx... format. The weird part was when I switched back to the latest Intel driver from the Microsoft driver, I left the spoofed MAC in place. When I rebooted, it was using the spoofed MAC. After that, I was able to change it as long as I stuck to the x2-xx-xx... format. One side note is that each change requires a reboot for it to take effect. It certainly does not work as well as NICs but it does work...now.

I am trying to give this a go and I'm striking out. I'm hoping someone will be able to help. I can change it in the registry but nothing really changes. I've tried it with and without hyphens. I've tried the exact addresses mentioned here as well as other 02 prefixed addresses.

Here is what I have:
Dell Latitude E5400
Intel WiFi Link 5100 agn
Windows 7 Pro x64 (retail)
Wireless Driver Intel 13.0.0.107 dated 9.15.2009

Anyone have any ideas? I'm thinking the driver is preventing it. Rolling back to something older will be a problem because the older drivers, this card, and Win 7 don't get along well. It's ping times go through the roof (3-4 sec).

I'm on windows 7, with an Intel WiFi Link 5100 AGN. I am unable to set my mac to 00:11:22:33:44:55, however, i can set it to 42:04:20:42:04:20..... and 12:11:11:11:11:11 so, just a theory, but it seems to me like the second digit needs to be a 2? x2-xx-xx-xx-xx-xx-xx.

-Dan

Yeah it seems it only allows you to change it to 02-00-xx-xx-xx-xx and nothing else.

mine is the exact same model as yours the Wifi link 5100 AGN card and i find that i am able to edit the mac address using the regedit, but... i can change it to a 02-00-xx-xx-xx-xx mac but i can't change it to a 00-13-xx-xx-xx-xx mac address (which is the mac address, i want its my previous device's mac)...

which is the annoying part....

o well...

if you find out some thing lemme know...

i'm still researching it even after a week >_<...

You might be able to. It all depends on if your wireless adapter's company allows you to change your mac address or not. This is a workaround for those wireless adapters that do not allow you to change the mac address through driver settings.

i have a question... say the mac address i wanna spoof to is a 00-13-xx-xx-xx-xx mac address...

is there no way to spoof it to that mac address?