Apparently this could be due to my hardware said one stack exchanger.
Anyway, for your information:
root@kali:~# lspci | grep Wireless 03:00.0 Network controller: Broadcom Corporation BCM4360 802.11ac Wireless Network Adapter (rev 03)
That is my wlan0 and for some reason if I try to change it I get these errors:
root@kali:~# macchanger -a wlan0 Current MAC: XX:XX:XX:XX:XX:XX (Apple) Permanent MAC: XX:XX:XX:XX:XX:XX (Apple) [ERROR] Could not change MAC: interface up or insufficient permissions: Too many open files in system
root@kali:~# ifconfig wlan0 down root@kali:~# ifconfig wlan0 hw ether xx:xx:xx:xx:xx:xx SIOCSIFHWADDR: Too many open files in system
Does it mean that I have got to blacklist/remove the additional drivers that I downloaded but aren't using?