How to avoid mac-adress spoofing auto reset on connecting

Everytime I spoof my mac-adress on Ubuntu using different approaches including macchanger it auto resets as soon as I actually try to reconnect to the network. This is what my problem looks like:
TERMINAL ENTRY before reconnection root@M-Linux:~# macchanger -s wlp2s0 Current MAC: XY (changed, obviously) (Hon Hai Precision Ind. Co.,Ltd.) Permanent MAC: XY (Hon Hai Precision Ind. Co.,Ltd.) root@M-Linux:~# ifconfig wlp2s0 down root@M-Linux:~# macchanger -rb wlp2s0 Current MAC: XY (Hon Hai Precision Ind. Co.,Ltd.) Permanent MAC: XY (Hon Hai Precision Ind. Co.,Ltd.) New MAC: AB (unknown) root@M-Linux:~# ifconfig wlp2s0 up root@M-Linux:~# macchanger -s wlp2s0 Current MAC: AB (unknown) Permanent MAC: XY (Hon Hai Precision Ind. Co.,Ltd.) Then I reconnect to the WIFI and then this happens root@M-Linux:~# macchanger -s wlp2s0 Current MAC: XY (Hon Hai Precision Ind. Co.,Ltd.) Permanent MAC: XY (Hon Hai Precision Ind. Co.,Ltd.) So the mac is back to normal. I tried this on kubuntu 16.04.3 and another debian-based distro. I tried it on my home and a public network. I tried it on two different machines: HP and Acer Notebooks. Exact same results every time and NO information about the issue on the web. What should I do?