I am trying to get vino going on CentOS 7.1

I run this command:
gsettings set org.gnome.Vino require-encryption false

Then this one:
gsettings list-recursively org.gnome.Vino org.gnome.Vino notify-on-connect true org.gnome.Vino alternative-port uint16 5900
org.gnome.Vino disable-background false org.gnome.Vino use-alternative-port false org.gnome.Vino icon-visibility ‘client’
org.gnome.Vino use-upnp false org.gnome.Vino view-only true org.gnome.Vino enabled true org.gnome.Vino prompt-enabled false org.gnome.Vino disable-xdamage false org.gnome.Vino authentication-methods [‘none’]
org.gnome.Vino network-interface ”
org.gnome.Vino require-encryption true org.gnome.Vino mailto ”
org.gnome.Vino lock-screen-on-disconnect false org.gnome.Vino VNC-password ‘keyring’

The require-encryption does not change.

Any reason why its not changing?

Thanks,

Jerry