Public bug reported:
Wi-fi had been working fine, but this morning, nothing doing.
syslog shows many instances of:
<warn> Activation (wlan0/wireless): association took too long, failing
activation.
Some info which may or may not be relevant:
Removing the network and adding it made no difference.
Deactivating, then reactivating the hardware wi-fi network switch made no
difference.
This was happening on two independent wi-fi networks (my hotel and the bluefin
office)
Rebooting fixed the issue.
Closing the laptop did not reliably send it to sleep last night.
Two competent Canonical engineers were unable to diagnose the problem.
% lsb_release -rd
Description: Ubuntu Trusty Tahr (development branch)
Release: 14.04
% uname -a
Linux rog-ThinkPad-X220 3.13.0-2-generic #17-Ubuntu SMP Fri Jan 10 12:14:30 UTC
2014 x86_64 x86_64 x86_64 GNU/Linux
% lspci
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family
DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core
Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series
Chipset Family MEI Controller #1 (rev 04)
00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network
Connection (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family
USB Enhanced Host Controller #2 (rev 04)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family
High Definition Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI
Express Root Port 1 (rev b4)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI
Express Root Port 2 (rev b4)
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI
Express Root Port 4 (rev b4)
00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI
Express Root Port 5 (rev b4)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family
USB Enhanced Host Controller #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation QM67 Express Chipset Family LPC
Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family
6 port SATA AHCI Controller (rev 04)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus
Controller (rev 04)
03:00.0 Network controller: Intel Corporation Centrino Wireless-N 1000 [Condor
Peak]
0d:00.0 System peripheral: Ricoh Co Ltd MMC/SD Host Controller (rev 07)
%
I have attached my syslog starting just before the most recent successful
connection until
just before I rebooted.
** Affects: network-manager (Ubuntu)
Importance: Undecided
Status: New
** Attachment added: "syslog-network-manager-bug"
https://bugs.launchpad.net/bugs/1274857/+attachment/3963957/+files/syslog-network-manager-bug
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https://bugs.launchpad.net/bugs/1274857
Title:
wi-fi continually fails to connect (after previous success)
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