Bug#822429: Acknowledgement (plasma-nm: Upstream Bug 362141: Connection editor fails with "connection.gateway-ping-timeout: can not set property: value")

[J Mo]

Note that a workaround is to use the ncurses "nmtui" command line tool, 
or the Gnome Network Connections tool (apt-get install 
network-manager-gnome).
It may be necessary to manually restart network manager after using 
these tools (sudo systemctl restart NetworkManager.service), as I found 
they saved the configuration changes but did not implement them.

I have found the KDE Connection Editor in it's current state to be 
completely unusable.