network driver didn't actually change to the new mac! !

[kabir]

When i try to change mac using macchanger

it show "network driver didn't actually change to the new mac! !"

How can I solve it.


Current MAC: xx:xx:xx:xx:xx:xx (unknown)
Permanent MAC: xx:xx:xx:xx:xx:xx (unknown)
New MAC: yy:yy:yy:yy:yy:yy (unknown)
Network driver didn't actually change to the new MAC!!