Wifi password must entered and saved from edit connections gui

Ubuntu 16.04.2 Live Session ISO test
Entered WI-FI password twice does connect
Then using from network menu right portion of top panel choosing Edit Connections >> Edit >>WI-FI >> Edit >> Wi-Fi security manually entering and saving Wi-Fi password.
The Ubuntu 16.04.2 Live session then connects to the Wi-Fi network.

Network-manager Version: 1.2.2-0ubuntu0.16.04.3
Ubuntu Desktop amd64 20170215.2

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: network-manager 1.2.2-0ubuntu0.16.04.3
ProcVersionSignature: Ubuntu 4.8.0-36.36~16.04.1-generic 4.8.11
Uname: Linux 4.8.0-36-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.5
Architecture: amd64
CasperVersion: 1.376.2
CurrentDesktop: Unity
Date: Thu Feb 16 01:58:28 2017
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
IpRoute:
 default via 192.168.77.1 dev wlp3s0 proto static metric 600
 169.254.0.0/16 dev wlp3s0 scope link metric 1000
 192.168.77.0/24 dev wlp3s0 proto kernel scope link src 192.168.77.106 metric 600
LiveMediaBuild: Ubuntu 16.04.2 LTS "Xenial Xerus" - Release amd64 (20170215.2)
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
ProcEnviron:
 TERM=xterm-256color
 PATH=(custom, no user)
 XDG_RUNTIME_DIR=<set>
 LANG=en_US.UTF-8
 SHELL=/bin/bash
RfKill:
 0: phy0: Wireless LAN
  Soft blocked: no
  Hard blocked: no
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
nmcli-con:
 NAME UUID TYPE TIMESTAMP TIMESTAMP-REAL AUTOCONNECT AUTOCONNECT-PRIORITY READONLY DBUS-PATH ACTIVE DEVICE STATE ACTIVE-PATH
 Ubuntu-One 9d036b67-c7ca-4f50-8d85-f5c1914f670a 802-11-wireless 1487210288 Thu 16 Feb 2017 01:58:08 AM UTC yes 0 no /org/freedesktop/NetworkManager/Settings/1 yes wlp3s0 activated /org/freedesktop/NetworkManager/ActiveConnection/2
 Wired connection 1 6d2a43a6-66f1-3ac0-814f-2bdf988dfa4a 802-3-ethernet 1487210129 Thu 16 Feb 2017 01:55:29 AM UTC yes 4294966297 no /org/freedesktop/NetworkManager/Settings/0 no -- -- --
nmcli-dev:
 DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH
 wlp3s0 wifi connected /org/freedesktop/NetworkManager/Devices/2 Ubuntu-One 9d036b67-c7ca-4f50-8d85-f5c1914f670a /org/freedesktop/NetworkManager/ActiveConnection/2
 enp0s25 ethernet unavailable /org/freedesktop/NetworkManager/Devices/0 -- -- --
 lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/1 -- -- --
nmcli-nm:
 RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN
 running 1.2.2 connected started full enabled enabled enabled enabled enabled