Public bug reported:
My wifi card, the Intel Centrino Wireless-N 2230 stopped working after
upgrading to 12.10 from 12.04, where it worked straight out of the box. It
will connect to wireless networks, but it will not receive internet access
through them.
I don't believe it's a matter of disabling 802.11N, because I've tried "sudo
modprobe iwlwifi 11n_disable=1" and "sudo modprobe iwlwifi 11n_disable=0" but
there is no difference between the two settings.
Here is the output of "dmesg | grep iwl" and "lshw -C network" (the part
pertaining to wlan0.)
dmesg | grep iwl
[ 6.457162] iwlwifi: Intel(R) Wireless WiFi Link AGN driver for Linux,
in-tree:
[ 6.457165] iwlwifi: Copyright(c) 2003-2012 Intel Corporation
[ 6.457261] iwlwifi 0000:08:00.0: >pci_resource_len = 0x00002000
[ 6.457264] iwlwifi 0000:08:00.0: >pci_resource_base = ffffc900117bc000
[ 6.457265] iwlwifi 0000:08:00.0: >HW Revision ID = 0xC4
[ 6.457402] iwlwifi 0000:08:00.0: >irq 44 for MSI/MSI-X
[ 6.639023] iwlwifi 0000:08:00.0: >loaded firmware version 18.168.6.1
[ 6.639261] iwlwifi 0000:08:00.0: >CONFIG_IWLWIFI_DEBUG disabled
[ 6.639263] iwlwifi 0000:08:00.0: >CONFIG_IWLWIFI_DEBUGFS enabled
[ 6.639265] iwlwifi 0000:08:00.0: >CONFIG_IWLWIFI_DEVICE_TRACING enabled
[ 6.639266] iwlwifi 0000:08:00.0: >CONFIG_IWLWIFI_DEVICE_TESTMODE enabled
[ 6.639268] iwlwifi 0000:08:00.0: >CONFIG_IWLWIFI_P2P disabled
[ 6.639270] iwlwifi 0000:08:00.0: >Detected Intel(R) Centrino(R) Wireless-N
2230 BGN, REV=0xC8
[ 6.639372] iwlwifi 0000:08:00.0: >L1 Enabled; Disabling L0S
[ 6.646716] iwlwifi 0000:08:00.0: >RF_KILL bit toggled to enable radio.
[ 6.657333] iwlwifi 0000:08:00.0: >device EEPROM VER=0x81c, CALIB=0x6
[ 6.657336] iwlwifi 0000:08:00.0: >Device SKU: 0x150
[ 6.657338] iwlwifi 0000:08:00.0: >Valid Tx ant: 0x3, Valid Rx ant: 0x3
[ 6.657353] iwlwifi 0000:08:00.0: >Tunable channels: 13 802.11bg, 0 802.11a
channels
[ 6.745867] ieee80211 phy0: >Selected rate control algorithm 'iwl-agn-rs'
[ 6.751260] iwlwifi 0000:08:00.0: >L1 Enabled; Disabling L0S
[ 6.758813] iwlwifi 0000:08:00.0: >Radio type=0x2-0x0-0x0
[ 7.021953] iwlwifi 0000:08:00.0: >L1 Enabled; Disabling L0S
[ 7.029368] iwlwifi 0000:08:00.0: >Radio type=0x2-0x0-0x0
sudo lshw -C network
*-network
description: Wireless interface
product: Centrino Wireless-N 2230
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:08:00.0
logical name: wlan0
version: c4
serial: 68:5d:43:8f:6a:06
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical
wireless
configuration: broadcast=yes driver=iwlwifi
driverversion=3.5.0-17-generic firmware=18.168.6.1 ip=198.129.220.76 latency=0
link=yes multicast=yes wireless=IEEE 802.11bgn
resources: irq:44 memory:c2500000-c2501fff
** Affects: gnome-nettool (Ubuntu)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1068346
Title:
Intel Centrino Wireless-N 2230 stopped working after upgrade to 12.10
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