how to how to hotspot wifi in ubuntu linux
go to System settings > Network > Wireless > Use as hotspot > Configure (or 'Edit connections' under your connections > Edit the hotspot connection) Switch to IPv6 Settings tab > Set Method to 'Ignore' and confirm/save in terminal (Ctrl + Alt + T) run the following command to kill all dnsmasq processes: sudo killall dnsmasq go to System settings > Network > Wireless > Use as hotspot use these steps. It should work