Had same issue with CentOS 6.3 iwlwifi firmware. See ticket <a href="http://bugs.centos.org/view.php?id=5834">http://bugs.centos.org/view.php?id=5834</a> [<a href="http://bugs.centos.org/view.php?id=5834" target="_blank">^</a>]<br />
<br />
In short, after upgrade today from CentOS 6.3 to 6.4 wlan0 would not connect to wireless network.<br />
<br />
After workaround (see below), connected to wireless network w/out issue.<br />
<br />
From previous ticket (see ref. above), I looked at kernel-ml from ElRepo but kernel-ml-firmware-3.8.2-1 does not contain any firmware for the iwlwifi-1000.<br />
<br />
An updated/functioning iwlwifi-1000-5.ucode firmware is needed but I can't find where to pull it from. Open to suggestions.<br />
<br />
__The setup__<br />
Kernel: 2.6.32-358.0.1.el6.x86_64<br />
iwlwifi firmware from iwl1000-firmware-39.31.5.1-1.el6.noarch<br />
<br />
# lspci -nn | grep -i net<br />
00:19.0 Ethernet controller [0200]: Intel Corporation 82577LM Gigabit Network Connection [8086:10ea] (rev 06)<br />
03:00.0 Network controller [0280]: Intel Corporation Centrino Wireless-N 1000 [8086:0084]<br />
<br />
# modinfo iwlwifi<br />
filename: /lib/modules/2.6.32-358.0.1.el6.x86_64/kernel/drivers/net/wireless/iwlwifi/iwlwifi.ko<br />
alias: iwlagn<br />
license: GPL<br />
author: Copyright(c) 2003-2012 Intel Corporation <<a href="mailto:ilw@linux.intel.com">ilw@linux.intel.com</a>><br />
version: in-tree:<br />
description: Intel(R) Wireless WiFi Link AGN driver for Linux<br />
firmware: iwlwifi-5150-2.ucode<br />
firmware: iwlwifi-5000-5.ucode<br />
firmware: iwlwifi-6000g2b-6.ucode<br />
firmware: iwlwifi-6000g2a-5.ucode<br />
firmware: iwlwifi-6050-5.ucode<br />
firmware: iwlwifi-6000-4.ucode<br />
firmware: iwlwifi-100-5.ucode<br />
firmware: iwlwifi-1000-5.ucode<br />
firmware: iwlwifi-135-6.ucode<br />
firmware: iwlwifi-105-6.ucode<br />
firmware: iwlwifi-2030-6.ucode<br />
firmware: iwlwifi-2000-6.ucode<br />
srcversion: DD154CD74B3465E3E2A412E<br />
alias: pci:v00008086d00000892sv*sd00000462bc*sc*i*<br />
alias: pci:v00008086d00000893sv*sd00000262bc*sc*i*<br />
alias: pci:v00008086d00000892sv*sd00000062bc*sc*i*<br />
alias: pci:v00008086d00000894sv*sd00000822bc*sc*i*<br />
alias: pci:v00008086d00000894sv*sd00000422bc*sc*i*<br />
alias: pci:v00008086d00000895sv*sd00000222bc*sc*i*<br />
alias: pci:v00008086d00000894sv*sd00000022bc*sc*i*<br />
alias: pci:v00008086d0000088Esv*sd00004860bc*sc*i*<br />
alias: pci:v00008086d0000088Esv*sd00004460bc*sc*i*<br />
alias: pci:v00008086d0000088Fsv*sd00004260bc*sc*i*<br />
alias: pci:v00008086d0000088Esv*sd00004060bc*sc*i*<br />
alias: pci:v00008086d00000887sv*sd00004462bc*sc*i*<br />
alias: pci:v00008086d00000888sv*sd00004262bc*sc*i*<br />
alias: pci:v00008086d00000887sv*sd00004062bc*sc*i*<br />
alias: pci:v00008086d00000890sv*sd00004822bc*sc*i*<br />
alias: pci:v00008086d00000890sv*sd00004422bc*sc*i*<br />
alias: pci:v00008086d00000891sv*sd00004222bc*sc*i*<br />
alias: pci:v00008086d00000890sv*sd00004022bc*sc*i*<br />
alias: pci:v00008086d00000896sv*sd00005027bc*sc*i*<br />
alias: pci:v00008086d00000896sv*sd00005025bc*sc*i*<br />
alias: pci:v00008086d00000897sv*sd00005017bc*sc*i*<br />
alias: pci:v00008086d00000897sv*sd00005015bc*sc*i*<br />
alias: pci:v00008086d00000896sv*sd00005007bc*sc*i*<br />
alias: pci:v00008086d00000896sv*sd00005005bc*sc*i*<br />
alias: pci:v00008086d000008AEsv*sd00001027bc*sc*i*<br />
alias: pci:v00008086d000008AEsv*sd00001025bc*sc*i*<br />
alias: pci:v00008086d000008AFsv*sd00001017bc*sc*i*<br />
alias: pci:v00008086d000008AFsv*sd00001015bc*sc*i*<br />
alias: pci:v00008086d000008AEsv*sd00001007bc*sc*i*<br />
alias: pci:v00008086d000008AEsv*sd00001005bc*sc*i*<br />
alias: pci:v00008086d00000084sv*sd00001316bc*sc*i*<br />
alias: pci:v00008086d00000084sv*sd00001216bc*sc*i*<br />
alias: pci:v00008086d00000083sv*sd00001326bc*sc*i*<br />
alias: pci:v00008086d00000083sv*sd00001226bc*sc*i*<br />
alias: pci:v00008086d00000083sv*sd00001306bc*sc*i*<br />
alias: pci:v00008086d00000083sv*sd00001206bc*sc*i*<br />
alias: pci:v00008086d00000084sv*sd00001315bc*sc*i*<br />
alias: pci:v00008086d00000084sv*sd00001215bc*sc*i*<br />
alias: pci:v00008086d00000083sv*sd00001325bc*sc*i*<br />
alias: pci:v00008086d00000083sv*sd00001225bc*sc*i*<br />
alias: pci:v00008086d00000083sv*sd00001305bc*sc*i*<br />
alias: pci:v00008086d00000083sv*sd00001205bc*sc*i*<br />
alias: pci:v00008086d00000886sv*sd00001317bc*sc*i*<br />
alias: pci:v00008086d00000886sv*sd00001315bc*sc*i*<br />
alias: pci:v00008086d00000885sv*sd00001327bc*sc*i*<br />
alias: pci:v00008086d00000885sv*sd00001325bc*sc*i*<br />
alias: pci:v00008086d00000885sv*sd00001307bc*sc*i*<br />
alias: pci:v00008086d00000885sv*sd00001305bc*sc*i*<br />
alias: pci:v00008086d00000089sv*sd00001316bc*sc*i*<br />
alias: pci:v00008086d00000089sv*sd00001311bc*sc*i*<br />
alias: pci:v00008086d00000087sv*sd00001326bc*sc*i*<br />
alias: pci:v00008086d00000087sv*sd00001321bc*sc*i*<br />
alias: pci:v00008086d00000087sv*sd00001306bc*sc*i*<br />
alias: pci:v00008086d00000087sv*sd00001301bc*sc*i*<br />
alias: pci:v00008086d00000091sv*sd00005226bc*sc*i*<br />
alias: pci:v00008086d00000091sv*sd00005225bc*sc*i*<br />
alias: pci:v00008086d00000091sv*sd00005221bc*sc*i*<br />
alias: pci:v00008086d00000091sv*sd00005207bc*sc*i*<br />
alias: pci:v00008086d00000091sv*sd00005206bc*sc*i*<br />
alias: pci:v00008086d00000091sv*sd00005205bc*sc*i*<br />
alias: pci:v00008086d00000091sv*sd00005201bc*sc*i*<br />
alias: pci:v00008086d00000090sv*sd00005216bc*sc*i*<br />
alias: pci:v00008086d00000090sv*sd00005215bc*sc*i*<br />
alias: pci:v00008086d00000090sv*sd00005211bc*sc*i*<br />
alias: pci:v00008086d0000008Bsv*sd00005317bc*sc*i*<br />
alias: pci:v00008086d0000008Bsv*sd00005315bc*sc*i*<br />
alias: pci:v00008086d0000008Asv*sd00005327bc*sc*i*<br />
alias: pci:v00008086d0000008Asv*sd00005325bc*sc*i*<br />
alias: pci:v00008086d0000008Asv*sd00005307bc*sc*i*<br />
alias: pci:v00008086d0000008Asv*sd00005305bc*sc*i*<br />
alias: pci:v00008086d00000082sv*sd00001305bc*sc*i*<br />
alias: pci:v00008086d00000082sv*sd00001304bc*sc*i*<br />
alias: pci:v00008086d00000082sv*sd00004820bc*sc*i*<br />
alias: pci:v00008086d00000085sv*sd0000C220bc*sc*i*<br />
alias: pci:v00008086d00000082sv*sd0000C020bc*sc*i*<br />
alias: pci:v00008086d00000085sv*sd00001316bc*sc*i*<br />
alias: pci:v00008086d00000085sv*sd00001311bc*sc*i*<br />
alias: pci:v00008086d00000082sv*sd00001326bc*sc*i*<br />
alias: pci:v00008086d00000082sv*sd00001321bc*sc*i*<br />
alias: pci:v00008086d00000082sv*sd00001307bc*sc*i*<br />
alias: pci:v00008086d00000082sv*sd00001306bc*sc*i*<br />
alias: pci:v00008086d00000082sv*sd00001301bc*sc*i*<br />
alias: pci:v00008086d00004239sv*sd00001316bc*sc*i*<br />
alias: pci:v00008086d00004239sv*sd00001311bc*sc*i*<br />
alias: pci:v00008086d00004238sv*sd00001111bc*sc*i*<br />
alias: pci:v00008086d0000422Csv*sd00001326bc*sc*i*<br />
alias: pci:v00008086d0000422Csv*sd00001321bc*sc*i*<br />
alias: pci:v00008086d0000422Csv*sd00001307bc*sc*i*<br />
alias: pci:v00008086d0000422Csv*sd00001306bc*sc*i*<br />
alias: pci:v00008086d0000422Csv*sd00001301bc*sc*i*<br />
alias: pci:v00008086d0000422Bsv*sd00001121bc*sc*i*<br />
alias: pci:v00008086d0000422Bsv*sd00001101bc*sc*i*<br />
alias: pci:v00008086d0000423Dsv*sd00001316bc*sc*i*<br />
alias: pci:v00008086d0000423Dsv*sd00001216bc*sc*i*<br />
alias: pci:v00008086d0000423Dsv*sd00001311bc*sc*i*<br />
alias: pci:v00008086d0000423Dsv*sd00001211bc*sc*i*<br />
alias: pci:v00008086d0000423Csv*sd00001321bc*sc*i*<br />
alias: pci:v00008086d0000423Csv*sd00001221bc*sc*i*<br />
alias: pci:v00008086d0000423Csv*sd00001306bc*sc*i*<br />
alias: pci:v00008086d0000423Csv*sd00001206bc*sc*i*<br />
alias: pci:v00008086d0000423Csv*sd00001301bc*sc*i*<br />
alias: pci:v00008086d0000423Csv*sd00001201bc*sc*i*<br />
alias: pci:v00008086d0000423Bsv*sd00001011bc*sc*i*<br />
alias: pci:v00008086d0000423Asv*sd00001021bc*sc*i*<br />
alias: pci:v00008086d0000423Asv*sd00001001bc*sc*i*<br />
alias: pci:v00008086d00004236sv*sd00001114bc*sc*i*<br />
alias: pci:v00008086d00004236sv*sd00001014bc*sc*i*<br />
alias: pci:v00008086d00004236sv*sd00001111bc*sc*i*<br />
alias: pci:v00008086d00004236sv*sd00001011bc*sc*i*<br />
alias: pci:v00008086d00004235sv*sd00001104bc*sc*i*<br />
alias: pci:v00008086d00004235sv*sd00001004bc*sc*i*<br />
alias: pci:v00008086d00004235sv*sd00001101bc*sc*i*<br />
alias: pci:v00008086d00004235sv*sd00001001bc*sc*i*<br />
alias: pci:v00008086d00004235sv*sd00001124bc*sc*i*<br />
alias: pci:v00008086d00004235sv*sd00001024bc*sc*i*<br />
alias: pci:v00008086d00004235sv*sd00001121bc*sc*i*<br />
alias: pci:v00008086d00004235sv*sd00001021bc*sc*i*<br />
alias: pci:v00008086d00004237sv*sd00001316bc*sc*i*<br />
alias: pci:v00008086d00004237sv*sd00001216bc*sc*i*<br />
alias: pci:v00008086d00004237sv*sd00001315bc*sc*i*<br />
alias: pci:v00008086d00004237sv*sd00001215bc*sc*i*<br />
alias: pci:v00008086d00004237sv*sd00001314bc*sc*i*<br />
alias: pci:v00008086d00004237sv*sd00001214bc*sc*i*<br />
alias: pci:v00008086d00004237sv*sd00001311bc*sc*i*<br />
alias: pci:v00008086d00004237sv*sd00001211bc*sc*i*<br />
alias: pci:v00008086d00004232sv*sd00001326bc*sc*i*<br />
alias: pci:v00008086d00004232sv*sd00001226bc*sc*i*<br />
alias: pci:v00008086d00004232sv*sd00001325bc*sc*i*<br />
alias: pci:v00008086d00004232sv*sd00001225bc*sc*i*<br />
alias: pci:v00008086d00004232sv*sd00001324bc*sc*i*<br />
alias: pci:v00008086d00004232sv*sd00001224bc*sc*i*<br />
alias: pci:v00008086d00004232sv*sd00001321bc*sc*i*<br />
alias: pci:v00008086d00004232sv*sd00001221bc*sc*i*<br />
alias: pci:v00008086d00004232sv*sd00001306bc*sc*i*<br />
alias: pci:v00008086d00004232sv*sd00001206bc*sc*i*<br />
alias: pci:v00008086d00004232sv*sd00001305bc*sc*i*<br />
alias: pci:v00008086d00004232sv*sd00001205bc*sc*i*<br />
alias: pci:v00008086d00004232sv*sd00001304bc*sc*i*<br />
alias: pci:v00008086d00004232sv*sd00001204bc*sc*i*<br />
alias: pci:v00008086d00004232sv*sd00001301bc*sc*i*<br />
alias: pci:v00008086d00004232sv*sd00001201bc*sc*i*<br />
depends: mac80211,cfg80211<br />
vermagic: 2.6.32-358.0.1.el6.x86_64 SMP mod_unload modversions <br />
parm: swcrypto:using crypto in software (default 0 [hardware]) (int)<br />
parm: 11n_disable:disable 11n functionality, bitmap: 1: full, 2: agg TX, 4: agg RX (uint)<br />
parm: amsdu_size_8K:enable 8K amsdu size (int)<br />
parm: fw_restart:restart firmware in case of error (int)<br />
parm: antenna_coupling:specify antenna coupling in dB (defualt: 0 dB) (int)<br />
parm: bt_ch_inhibition:Enable BT channel inhibition (default: enable) (bool)<br />
parm: plcp_check:Check plcp health (default: 1 [enabled]) (bool)<br />
parm: wd_disable:Disable stuck queue watchdog timer 0=system default, 1=disable, 2=enable (default: 0) (int)<br />
parm: bt_coex_active:enable wifi/bt co-exist (default: enable) (bool)<br />
parm: led_mode:0=system default, 1=On(RF On)/Off(RF Off), 2=blinking, 3=Off (default: 0) (int)<br />
parm: power_save:enable WiFi power management (default: disable) (bool)<br />
parm: power_level:default power save level (range from 1 - 5, default: 1) (int)<br />
parm: auto_agg:enable agg w/o check traffic load (default: enable) (bool)<br />
parm: 5ghz_disable:disable 5GHz band (default: 0 [enabled]) (bool)
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