Can't connect to my wi-fi N network on vivid: authentication timed out

Bug #1441893 reported by Leo Arias on 2015-04-08
This bug affects 2 people
Affects Status Importance Assigned to Milestone
network-manager (Ubuntu)
Nominated for Vivid by Alberto Salvia Novella

Bug Description

I can't connect to my wi-fi with my laptop.

I get this error message in the syslog.
Apr 8 22:25:35 ubuntu kernel: [ 793.895555] wlan0: authentication with 10:bf:48:e5:d1:b8 timed out

ubuntu@ubuntu:~$ lshw -c network
WARNING: you should run this program as super-user.
       description: Ethernet interface
       product: Ethernet Connection I217-V
       vendor: Intel Corporation
       physical id: 19
       bus info: pci@0000:00:19.0
       logical name: eth0
       version: 05
       serial: 00:90:f5:f8:ef:86
       size: 1Gbit/s
       capacity: 1Gbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=2.3.2-k duplex=full firmware=0.12-3 ip= latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
       resources: irq:29 memory:f7e00000-f7e1ffff memory:f7e3d000-f7e3dfff ioport:f080(size=32)
       description: Wireless interface
       product: Wireless 3160
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: wlan0
       version: 83
       serial: a0:88:69:39:ae:d6
       width: 64 bits
       clock: 33MHz
       capabilities: bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlwifi driverversion=3.19.0-10-generic firmware= latency=0 link=no multicast=yes wireless=IEEE 802.11abgn
       resources: irq:32 memory:f7c00000-f7c01fff

Attached is the full syslog.
This machine has been working more or less ok on vivid for at least three months. Sometimes it refused to connect to the wi-fi, but after a restart it started working.
Recently I changed the network from G to N, and recently did an upgrade to the latest vivid. I had some problems booting, so I also recently fully removed upstart. It boots fine with systemd, and everything else seem to be working.
I've just tested with a daily vivid live USB, and the same problem happened.

I'm connecting to the same network using the same password with my other machine.

ProblemType: Bug
DistroRelease: Ubuntu 15.04
Package: network-manager
ProcVersionSignature: Ubuntu 3.19.0-10.10-generic 3.19.2
Uname: Linux 3.19.0-10-generic x86_64
ApportVersion: 2.16.2-0ubuntu4
Architecture: amd64
CasperVersion: 1.356
CurrentDesktop: Unity
Date: Wed Apr 8 22:20:03 2015
 # interfaces(5) file used by ifup(8) and ifdown(8)
 auto lo
 iface lo inet loopback
 default via dev eth0 proto static metric 1024 dev eth0 scope link metric 1000 dev eth0 proto kernel scope link src
LiveMediaBuild: Ubuntu 15.04 "Vivid Vervet" - Beta amd64 (20150326)
 PATH=(custom, no user)
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
 eth0 ethernet connected /org/freedesktop/NetworkManager/Devices/1 Wired connection 1 cf5cb021-0df1-4f13-b74c-c3e9c6749a30 /org/freedesktop/NetworkManager/ActiveConnection/2
 wlan0 wifi disconnected /org/freedesktop/NetworkManager/Devices/2 -- -- --
 lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/0 -- -- --
nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2: Error: Object 'nm' is unknown, try 'nmcli help'.

Leo Arias (elopio) wrote :
Leo Arias (elopio) on 2015-04-09
description: updated

I switched the network back to G, and I can connect.

summary: - Can't connect to my wi-fi: authentication timed out
+ Can't connect to my wi-fi N network: authentication timed out
Leo Arias (elopio) wrote :

I could connect to the G network on utopic, so this is a regression.

summary: - Can't connect to my wi-fi N network: authentication timed out
+ Can't connect to my wi-fi N network on vivid: authentication timed out
Leo Arias (elopio) wrote :

sorry, scratch that last comment. It should have been:

I could connect to the N network on utopic, so this is a regression.

Launchpad Janitor (janitor) wrote :

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

Changed in network-manager (Ubuntu):
status: New → Confirmed

  1. Report to <>.
  2. Paste the new report URL here.
  3. Set this bug status back to "confirmed".

Thank you.

Changed in network-manager (Ubuntu):
importance: Undecided → Critical
importance: Critical → High
status: Confirmed → Incomplete
tags: added: asked-to-upstream
Carl Mehner (p-c) wrote :

I see this behavior when using the Intel Wireless 3160, however, when using a USB TP-Link TL-WN722N, I can connect just fine without getting the "wlan0: authentication with xx:xx:xx:xx:xx:xx timed out".

@elopio, can you do a similar experiment?

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