Error when trying to connect WiFi

[Bo Berglund]

When I try to connect WiFi on my HP Ubuntu 20.04.3 LTS PCs in a VNC session I
get the following pop-up message:

"Not authorized to control networking"

I need to do this because my LAN was disconnected from the Internet due to a
fiber failure. But I have a backup mobile broadband router (WiFi only) so I
could connect my PC to this and thus get Internet access (to write this).

Now I want to do the same for my two HP PC:s, which I access via VNC (no
monitors, VNC only). But when I use the network icon to connect to the mobile
broadband WiFi I get the error above.

What can I do?

I have tried this:
sudo usermod -G netdev -a bosse

from a suggestion linuxquestions, but it did not work.


-- 
Bo Berglund
Developer in Sweden