after updating to ubuntu 16.04 the network manager is unable to connect me to the wifi network. I can see the network, but once I introduce the password, it asks me for the password after a few seconds and never connects.

Bug #1603815 reported by Miguel Fernandez on 2016-07-17
44
This bug affects 9 people
Affects Status Importance Assigned to Milestone
network-manager (Ubuntu)
Critical
Unassigned

Bug Description

after updating to ubuntu 16.04 the network manager is unable to connect me to the wifi network. I can see the network, but once I introduce the password, it asks me for the password after a few seconds and never connects. I use different devices connected to the same wifi so it is not a problem of writting the wrong password.

ProblemType: Bug
DistroRelease: Ubuntu 16.04
Package: network-manager 1.1.93-0ubuntu4
ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
Uname: Linux 4.4.0-31-generic x86_64
ApportVersion: 2.20.1-0ubuntu2.1
Architecture: amd64
CurrentDesktop: Unity
Date: Sun Jul 17 16:58:17 2016
IfupdownConfig:
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
InstallationDate: Installed on 2016-07-16 (1 days ago)
InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1)
IpRoute:
 default via 192.168.2.1 dev enp2s0 proto static metric 100
 169.254.0.0/16 dev enp2s0 scope link metric 1000
 192.168.2.0/24 dev enp2s0 proto kernel scope link src 192.168.2.242 metric 100
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
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
 Conexión cableada 1 9e376788-1744-46de-a314-eeb07aad8c13 802-3-ethernet 1468789026 dom 17 jul 2016 16:57:06 CDT yes 4294966297 no /org/freedesktop/NetworkManager/Settings/2 yes enp2s0 activated /org/freedesktop/NetworkManager/ActiveConnection/1
 BELL419 2 8bd64cc4-181f-449b-95a3-edc74cf2a9a6 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
 enp2s0 ethernet connected /org/freedesktop/NetworkManager/Devices/1 Conexión cableada 1 9e376788-1744-46de-a314-eeb07aad8c13 /org/freedesktop/NetworkManager/ActiveConnection/1
 wlp3s0b1 wifi disconnected /org/freedesktop/NetworkManager/Devices/0 -- -- --
 lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/2 -- -- --
nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2: Error: Object 'nm' is unknown, try 'nmcli help'.

Miguel Fernandez (flexo-ast) wrote :
Launchpad Janitor (janitor) wrote :

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

Changed in network-manager (Ubuntu):
status: New → Confirmed
Changed in network-manager (Ubuntu):
importance: Undecided → Critical
Luke (delosisigh1) on 2016-12-02
description: updated

Can you check the password in network-manager view and edit it there?

I think that the "wrong password - enter new"-dialog does not save the entered password and thus a reconnect with the old wrong password always fails.
See also Bug #1542733 which I have experienced together with this one.

Download full text (3.9 KiB)

sorry, I gave up and I gave the laptop to a family member who is going to
reinstall an OS.

Miguel

On 3 January 2017 at 11:42, Michael Mess <email address hidden> wrote:

> Can you check the password in network-manager view and edit it there?
>
> I think that the "wrong password - enter new"-dialog does not save the
> entered password and thus a reconnect with the old wrong password always
> fails.
> See also Bug #1542733 which I have experienced together with this one.
>
> --
> You received this bug notification because you are subscribed to the bug
> report.
> https://bugs.launchpad.net/bugs/1603815
>
> Title:
> after updating to ubuntu 16.04 the network manager is unable to
> connect me to the wifi network. I can see the network, but once I
> introduce the password, it asks me for the password after a few
> seconds and never connects.
>
> Status in network-manager package in Ubuntu:
> Confirmed
>
> Bug description:
> after updating to ubuntu 16.04 the network manager is unable to
> connect me to the wifi network. I can see the network, but once I
> introduce the password, it asks me for the password after a few
> seconds and never connects. I use different devices connected to the
> same wifi so it is not a problem of writting the wrong password.
>
> ProblemType: Bug
> DistroRelease: Ubuntu 16.04
> Package: network-manager 1.1.93-0ubuntu4
> ProcVersionSignature: Ubuntu 4.4.0-31.50-generic 4.4.13
> Uname: Linux 4.4.0-31-generic x86_64
> ApportVersion: 2.20.1-0ubuntu2.1
> Architecture: amd64
> CurrentDesktop: Unity
> Date: Sun Jul 17 16:58:17 2016
> IfupdownConfig:
> # interfaces(5) file used by ifup(8) and ifdown(8)
> auto lo
> iface lo inet loopback
> InstallationDate: Installed on 2016-07-16 (1 days ago)
> InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Release amd64
> (20160420.1)
> IpRoute:
> default via 192.168.2.1 dev enp2s0 proto static metric 100
> 169.254.0.0/16 dev enp2s0 scope link metric 1000
> 192.168.2.0/24 dev enp2s0 proto kernel scope link src
> 192.168.2.242 metric 100
> NetworkManager.state:
> [main]
> NetworkingEnabled=true
> WirelessEnabled=true
> WWANEnabled=true
> 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
> Conexión cableada 1 9e376788-1744-46de-a314-eeb07aad8c13
> 802-3-ethernet 1468789026 dom 17 jul 2016 16:57:06 CDT yes
> 4294966297 no /org/freedesktop/NetworkManager/Settings/2
> yes enp2s0 activated /org/freedesktop/NetworkManager/
> ActiveConnection/1
> BELL419 2 8bd64cc4-181f-449b-95a3-edc74cf2a9a6
> 802-11-wireless 0 never yes 0
> no /org/freedesktop/NetworkManager/Settings/1
> no -- -- --
> nmcli-dev:
> DEVICE TYPE STATE DBUS-PATH
> CONNECTION CON-UUID ...

Read more...

Uwe (gandalf.the.grey) wrote :

I'm experiencing the same problem after I have changed my WiFi router. Each of my device connect flawlessly except a laptop running Ubuntu 16.04. I was only able to connect to my network after disabling the NetworkManager and configuring WiFi using wpa_supplicant.

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