Force refresh of wifi network list in ubuntu

 

sudo iwlist scan

sudo systemctl restart NetworkManager

alias wifi-refresh='sudo iwlist scan && sudo systemctl restart NetworkManager'

or make it faster by picking wlan interface

#first find name of wlan interface running

ifconfig

# and run scan:

sudo iwlist wlp6s0 scan

# where `wlp6s0` is name of wlan interface from `ifconfig`

alias wifi-refresh='sudo iwlist wlp6s0 scan && sudo systemctl restart NetworkManager'