https://makkelijkelinuxtips.blogspot.com/p/internet.html
rfkill list all
rfkill list all
&
rfkill unblock all
rfkill unblock all
https://makkelijkelinuxtips.blogspot.com/p/internet.html?m=1
https://askubuntu.com/questions/915278/kill-all-wifi-connectivity-processes
sudo restart network-manager
network-manager start/running, process $your_pid