Aircrack-ng suite provides a method of disabling Network Manager functions thru the airmon-ng check kill command. Unfortunately they did not tell you how to restore Network Manager after evoking airmon-ng check kill.

The actual commands are buried in the airmon-ng script.

The following three(3) commands should cover most kali distros:

service network-manager restart
service NetworkManager restart
service avahi-daemon restart

MTeams