Fails To Connect To WPA2 WiFi

[Aere Greenway]

The task-bar applet showing network connection will not connect to the DSL modem wireless, as it used to do in prior releases.

I tried three different wireless dongles, all with the same result.

I'm running the live 17.04 system, and I tried it on three different machines as well.

Other than the machine I submitted the bug report on (which also has ethernet connectivity), all of my other machines depend on wireless, so 17.04 is not usable.

I tried both Lubuntu 17.04 and Xubuntu 17.04, and both live-systems have the same problem.

1) lubuntu@lubuntu:~$ lsb_release -rd
Description: Ubuntu 17.04
Release: 17.04

2) lubuntu@lubuntu:~$ sudo apt-cache policy network-manager-applet
N: Unable to locate package network-manager-applet

3) I expected the wireless to connect, as it has always done in prior releases.

4) It tried connecting for a period of time, then gave up.

ProblemType: Bug
DistroRelease: Ubuntu 17.04
Package: network-manager-gnome 1.4.2-1ubuntu4
ProcVersionSignature: Ubuntu 4.10.0-19.21-generic 4.10.8
Uname: Linux 4.10.0-19-generic i686
ApportVersion: 2.20.4-0ubuntu4
Architecture: i386
CasperVersion: 1.380
CurrentDesktop: LXDE
Date: Fri Apr 14 02:52:32 2017
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
IpRoute:
 default via 192.168.0.1 dev enp3s0 proto static metric 100
 192.168.0.0/24 dev enp3s0 proto kernel scope link src 192.168.0.2 metric 100
LiveMediaBuild: Lubuntu 17.04 "Zesty Zapus" - Release i386 (20170412)
NetworkManager.conf:
 [main]
 plugins=ifupdown,keyfile

 [ifupdown]
 managed=false
ProcEnviron:
 TERM=xterm
 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-applet
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
 Wired connection 1 d5e527dc-f755-3a8e-978a-a4233102a518 802-3-ethernet 1492138159 Fri 14 Apr 2017 02:49:19 AM UTC yes 4294966297 no /org/freedesktop/NetworkManager/Settings/0 yes enp3s0 activated /org/freedesktop/NetworkManager/ActiveConnection/0
 TEMAIRANET 19205db9-bf9d-4768-9851-5e7a2941266a 802-11-wireless 0 never yes 0 no /org/freedesktop/NetworkManager/Settings/1 no -- -- --
nmcli-dev:
 DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH
 enp3s0 ethernet connected /org/freedesktop/NetworkManager/Devices/1 Wired connection 1 d5e527dc-f755-3a8e-978a-a4233102a518 /org/freedesktop/NetworkManager/ActiveConnection/0
 wlx0025223f6edb wifi disconnected /org/freedesktop/NetworkManager/Devices/2 -- -- --
 lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/0 -- -- --
nmcli-nm:
 RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN
 running 1.4.4 connected started full enabled enabled enabled enabled enabled

[Aere Greenway (aere)]

I upgraded a 16.10 system with working wireless, to 17.04, and after reboot, the wireless no longer connects.

The wireless sees the wireless networks available, but it will not connect.

I have a long WPA2 passphrase (22 characters, with upper and lower case letters).

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Frank Sokolic (sokolic)]

Have just upgraded from 16.10 to 17.04 and can no longer connect to the router using my D-Link EDUP 802.11N wireless usb adapter. It worked fine with 16.10.