The connect automatically option is allowed for my wired "Wired connection 1". Disconnecting the connection works when I do it from the panel's Network -> Disconnect menu. But when I do that with command:
nmcli con down id "Wired connection 1"
no sooner than it disconnects, the connection is back on.
How does Network -> Disconnect work? Could we do the same with
nmcli without disabling the automatic connection?
nmcli con down id "Wired connection 1"works as with automatic connection disabled (but again that's not an option),
sudois not pereferred (wouldn't be good to implement in a script!).