Network-Manager will reset your mac address during the wifi scanning. To permanently change your mac address: Edit your /etc/NetworkManager/NetworkManager.conf as follows: [main] plugins=ifupdown,keyfile [ifupdown] managed=false [device] wifi.scan-rand-mac-address=no [keyfile] Edit your /etc/network/interfaces by adding the following line: pre-up ifconfig wlp68s0b1 hw ether xx:xx:xx:yy:yy:yy The xx:xx:xx:yy:yy:yy is the new mac address obtained from the output of macchanger -A wlp68s0b1 sources: click here