Try to set auto connection to yes.
sudo nmcli con mod connectionName connection.autoconnect yes
BTW we are going a bit off topic. These issues are not strictly related to the RPi or to the mailing list purposes.
As said by pbrobinson use the man pages, or use a search engine: there are a lot of examples and documents about nmcli. Or go back to Ask Fedora ;-)
Ciao,
A.