Not sure but I think so?  I ran quantal as a live CD so didn't install
anything but appeared to work.  Its still broke on my system at the
moment.  I'm still running precise.

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https://bugs.launchpad.net/bugs/1063245

Title:
  Atheros AR9462: Wifi Band N - WPA Does Not work, No security OK

Status in “linux” package in Ubuntu:
  Confirmed
Status in “network-manager” package in Ubuntu:
  New

Bug description:
  I have a dual band router. On the a/g frequency (2.472 GHz) everything
  works fine but on the b/n frequency (5.18) GHz I cant connect if I set
  up WPA security. It works if I leave the network unsecured but not WPA
  security. WPA security works fine on the a/g frequency.

  I want to use the b/n range as I have so many competing Wifi signals nearby 
(a/g range) I often lose connection.
  On the b/n range Its never drops but I have no security.
  Any suggestions??

  System details:
       Dell Vostro 3560
      Ubuntu 12.04.1 Clean Install, Only OS

   sudo lshw -C network; lsb_release -a; uname -a; sudo rfkill list;
  dmesg | grep -i firm; sudo iwlist scan

  output is

  warren@dell:~$ sudo lshw -C network; lsb_release -a; uname -a; sudo rfkill 
list; dmesg | grep -i firm; sudo iwlist scan
  [sudo] password for warren:
    *-network
         description: Ethernet interface
         product: RTL8111/8168B PCI Express Gigabit Ethernet controller
         vendor: Realtek Semiconductor Co., Ltd.
         physical id: 0
         bus info: pci@0000:01:00.0
         logical name: eth0
         version: 07
         serial: d4:be:d9:39:02:c3
         size: 10Mbit/s
         capacity: 1Gbit/s
         width: 64 bits
         clock: 33MHz
         capabilities: pm msi pciexpress msix vpd bus_master cap_list ethernet 
physical tp mii 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
         configuration: autonegotiation=on broadcast=yes driver=r8169 
driverversion=2.3LK-NAPI duplex=half firmware=rtl8168e-3_0.0.4 03/27/12 
latency=0 link=no multicast=yes port=MII speed=10Mbit/s
         resources: irq:42 ioport:3000(size=256) memory:c2404000-c2404fff 
memory:c2400000-c2403fff
    *-network
         description: Wireless interface
         product: AR9462 Wireless Network Adapter
         vendor: Atheros Communications Inc.
         physical id: 0
         bus info: pci@0000:02:00.0
         logical name: wlan0
         version: 01
         serial: 08:ed:b9:22:9e:4f
         width: 64 bits
         clock: 33MHz
         capabilities: pm msi pciexpress bus_master cap_list rom ethernet 
physical wireless
         configuration: broadcast=yes driver=ath9k 
driverversion=3.2.0-31-generic-pae firmware=N/A ip=192.168.0.5 latency=0 
link=yes multicast=yes wireless=IEEE 802.11abgn
         resources: irq:17 memory:c2500000-c257ffff memory:afb00000-afb0ffff
  No LSB modules are available.
  Distributor ID: Ubuntu
  Description: Ubuntu 12.04.1 LTS
  Release: 12.04
  Codename: precise
  Linux dell 3.2.0-31-generic-pae #50-Ubuntu SMP Fri Sep 7 16:39:45 UTC 2012 
i686 i686 i386 GNU/Linux
  0: hci0: Bluetooth
   Soft blocked: yes
   Hard blocked: no
  1: phy0: Wireless LAN
   Soft blocked: no
   Hard blocked: no
  2: dell-wifi: Wireless LAN
   Soft blocked: no
   Hard blocked: no
  3: dell-bluetooth: Bluetooth
   Soft blocked: yes
   Hard blocked: no
  [ 11.058802] psmouse serio1: elantech: assuming hardware version 3 (with 
firmware version 0x450f02)
  lo Interface doesn't support scanning.

  wlan0 Scan completed :
            Cell 01 - Address: F8:D1:11:70:53:4E
                      Channel:4
                      Frequency:2.427 GHz (Channel 4)
                      Quality=62/70 Signal level=-48 dBm
                      Encryption key:on
                      ESSID:"1gid46vaylveagu59b3ks232h"
                      Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                                9 Mb/s; 12 Mb/s; 18 Mb/s
                      Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                      Mode:Master
                      Extra:tsf=000000002db73d80
                      Extra: Last beacon: 4152ms ago
                      IE: Unknown: 
00193167696434367661796C7665616775353962336B7332333268
                      IE: Unknown: 010882848B960C121824
                      IE: Unknown: 030104
                      IE: WPA Version 1
                          Group Cipher : TKIP
                          Pairwise Ciphers (2) : CCMP TKIP
                          Authentication Suites (1) : PSK
                      IE: Unknown: 2A0100
                      IE: Unknown: 32043048606C
                      IE: Unknown: 
DD180050F2020101870003A4000027A4000042435E0062322F00
                      IE: Unknown: 
DD1E00904C334E111BFF00000000000000000000000000000000000000000000
                      IE: Unknown: 
2D1A4E111BFF00000000000000000000000000000000000000000000
                      IE: Unknown: 
DD1A00904C3404051B00000000000000000000000000000000000000
                      IE: Unknown: 
3D1604051B00000000000000000000000000000000000000
                      IE: Unknown: DD0900037F01010000FF7F
                      IE: Unknown: DD0A00037F04010000004000
                      IE: Unknown: 
DD7F0050F204104A0001101044000102103B0001031047001000000000000010000000F8D11170534E1021000754502D4C494E4B10230009544C2D57413730314E10240003312E3010420003312E301054000800060050F204000110110017576972656C657373204E20415020544C2D57413730314E100800020086103C000101
            Cell 02 - Address: 1C:AF:F7:63:A5:26
                      Channel:1
                      Frequency:2.412 GHz (Channel 1)
                      Quality=54/70 Signal level=-56 dBm
                      Encryption key:on
                      ESSID:"TALKTALK-63A526"
                      Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
                                9 Mb/s; 12 Mb/s; 18 Mb/s
                      Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
                      Mode:Master
                      Extra:tsf=00000010bd6361bc
                      Extra: Last beacon: 4416ms ago
                      IE: Unknown: 000F54414C4B54414C4B2D363341353236
                      IE: Unknown: 010882848B960C121824
                      IE: Unknown: 030101
                      IE: Unknown: 2A0104
                      IE: Unknown: 32043048606C
                      IE: WPA Version 1
                          Group Cipher : TKIP
                          Pairwise Ciphers (2) : TKIP CCMP
                          Authentication Suites (1) : PSK
                      IE: IEEE 802.11i/WPA2 Version 1
                          Group Cipher : TKIP
                          Pairwise Ciphers (2) : TKIP CCMP
                          Authentication Suites (1) : PSK
                      IE: Unknown: 
DD180050F2020101000003A4000027A4000042435E0062322F00
            Cell 03 - Address: 4C:60:DE:6B:85:4B
                      Channel:13
                      Frequency:2.472 GHz (Channel 13)
                      Quality=64/70 Signal level=-46 dBm
                      Encryption key:on
                      ESSID:"1gid46vaylveagu59b3ks232h"
                      Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
                                24 Mb/s; 36 Mb/s; 54 Mb/s
                      Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
                      Mode:Master
                      Extra:tsf=00000027e750518c
                      Extra: Last beacon: 3608ms ago
                      IE: Unknown: 
00193167696434367661796C7665616775353962336B7332333268
                      IE: Unknown: 010882848B962430486C
                      IE: Unknown: 03010D
                      IE: Unknown: 2A0100
                      IE: Unknown: 2F0100
                      IE: Unknown: 32040C121860
                      IE: Unknown: 
DD730050F204104A00011010440001021041000100103B00010310470010C8F7D19B3C39E65DD5B3EC2A8601640D102100074E6574676561721023000844474E44333330301024000631323334353610420004313233341054000800060050F20400011011000844474E4433333030100800020088
                      IE: Unknown: DD090010180200F0040000
                      IE: WPA Version 1
                          Group Cipher : TKIP
                          Pairwise Ciphers (1) : TKIP
                          Authentication Suites (1) : PSK
                      IE: Unknown: 
DD180050F2020101800003A4000027A4000042435E0062322F00
            Cell 04 - Address: 4C:60:DE:6B:85:4A
                      Channel:36
                      Frequency:5.18 GHz (Channel 36)
                      Quality=65/70 Signal level=-45 dBm
                      Encryption key:on
                      ESSID:"1gid46vaylveagu59b3ks232h"
                      Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 18 Mb/s; 24 Mb/s
                                36 Mb/s; 48 Mb/s; 54 Mb/s
                      Mode:Master
                      Extra:tsf=00000027e73cd2e9
                      Extra: Last beacon: 3576ms ago
                      IE: Unknown: 
00193167696434367661796C7665616775353962336B7332333268
                      IE: Unknown: 01088C129824B048606C
                      IE: Unknown: 
2D1A6C081BFFFF000000000000000000000000000000000000000000
                      IE: Unknown: 
3D1624080000000000000000000000000000000000000000
                      IE: Unknown: 
DD730050F204104A00011010440001021041000100103B00010310470010C8F7D19B3C39E65DD5B3EC2A8601640D102100074E6574676561721023000844474E44333330301024000631323334353610420004313233341054000800060050F20400011011000844474E4433333030100800020088
                      IE: Unknown: DD090010180200F0050000
                      IE: WPA Version 1
                          Group Cipher : TKIP
                          Pairwise Ciphers (1) : TKIP
                          Authentication Suites (1) : PSK
                      IE: Unknown: 
DD180050F2020101800003A4000027A4000042435E0062322F00
                      IE: Unknown: 
DD1E00904C336C081BFFFF000000000000000000000000000000000000000000
                      IE: Unknown: 
DD1A00904C3424080000000000000000000000000000000000000000

  eth0 Interface doesn't support scanning.

  warren@dell:~$

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: network-manager 0.9.4.0-0ubuntu4.1
  ProcVersionSignature: Ubuntu 3.2.0-31.50-generic-pae 3.2.28
  Uname: Linux 3.2.0-31-generic-pae i686
  ApportVersion: 2.0.1-0ubuntu13
  Architecture: i386
  Date: Sun Oct  7 14:48:44 2012
  IfupdownConfig:
   auto lo
   iface lo inet loopback
  InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release i386 
(20120817.3)
  IpRoute:
   default via 192.168.0.1 dev wlan0  proto static 
   169.254.0.0/16 dev wlan0  scope link  metric 1000 
   192.168.0.0/24 dev wlan0  proto kernel  scope link  src 192.168.0.5  metric 2
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=true
   WimaxEnabled=true
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  SourcePackage: network-manager
  UpgradeStatus: No upgrade log present (probably fresh install)
  nmcli-con:
   NAME                      UUID                                   TYPE        
      TIMESTAMP    TIMESTAMP-REAL                     AUTOCONNECT   READONLY   
DBUS-PATH                                 
   1gid46vaylveagu59b3ks232h 8f111432-1032-428e-9e1c-90dce568bfc1   
802-11-wireless   1349617486   Sun 07 Oct 2012 14:44:46 BST       yes           
no         /org/freedesktop/NetworkManager/Settings/2
   Warren-Lab                ef297021-92da-40c7-98f8-c546d6b3abdc   
802-11-wireless   1348583561   Tue 25 Sep 2012 15:32:41 BST       no            
no         /org/freedesktop/NetworkManager/Settings/1
   N-InternetOnly            76725159-a1cf-42d8-9df2-db804ad8cda4   
802-11-wireless   1349444716   Fri 05 Oct 2012 14:45:16 BST       no            
no         /org/freedesktop/NetworkManager/Settings/0
   Wired connection 1        9a3e7792-4e37-44b8-9fb3-5972bb08d1c8   
802-3-ethernet    1349612986   Sun 07 Oct 2012 13:29:46 BST       yes           
no         /org/freedesktop/NetworkManager/Settings/3
  nmcli-dev:
   DEVICE     TYPE              STATE         DBUS-PATH                         
         
   wlan0      802-11-wireless   connected     
/org/freedesktop/NetworkManager/Devices/1  
   eth0       802-3-ethernet    unavailable   
/org/freedesktop/NetworkManager/Devices/0
  nmcli-nm:
   RUNNING         VERSION    STATE           NET-ENABLED   WIFI-HARDWARE   
WIFI       WWAN-HARDWARE   WWAN      
   running         0.9.4.0    connected       enabled       enabled         
enabled    enabled         disabled
  --- 
  AlsaVersion: Advanced Linux Sound Architecture Driver Version 1.0.24.
  ApportVersion: 2.0.1-0ubuntu13
  Architecture: i386
  ArecordDevices:
   **** List of CAPTURE Hardware Devices ****
   card 0: PCH [HDA Intel PCH], device 0: CONEXANT Analog [CONEXANT Analog]
     Subdevices: 1/1
     Subdevice #0: subdevice #0
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  warren     1662 F.... pulseaudio
  Card0.Amixer.info:
   Card hw:0 'PCH'/'HDA Intel PCH at 0xc2610000 irq 45'
     Mixer name : 'Intel PantherPoint HDMI'
     Components : 'HDA:14f1506e,1028056d,00100003 
HDA:80862806,80860101,00100000'
     Controls      : 24
     Simple ctrls  : 11
  DistroRelease: Ubuntu 12.04
  HibernationDevice: RESUME=UUID=7cc34a8e-8bd0-4860-a040-fe0a229ebcd6
  IfupdownConfig:
   auto lo
   iface lo inet loopback
  InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release i386 
(20120817.3)
  IpRoute:
   default via 192.168.0.1 dev wlan0  proto static 
   169.254.0.0/16 dev wlan0  scope link  metric 1000 
   192.168.0.0/24 dev wlan0  proto kernel  scope link  src 192.168.0.3  metric 2
  MachineType: Dell Inc. Vostro 3560
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=true
   WimaxEnabled=true
  Package: network-manager 0.9.4.0-0ubuntu4.1
  PackageArchitecture: i386
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.2.0-31-generic-pae 
root=UUID=76d94803-15f4-4ac5-b323-1691406736a4 ro quiet splash vt.handoff=7
  ProcVersionSignature: Ubuntu 3.2.0-31.50-generic-pae 3.2.28
  RelatedPackageVersions:
   linux-restricted-modules-3.2.0-31-generic-pae N/A
   linux-backports-modules-3.2.0-31-generic-pae  N/A
   linux-firmware                                1.79.1
  StagingDrivers: rts5139 mei
  Tags:  precise staging precise
  Uname: Linux 3.2.0-31-generic-pae i686
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo wireshark
  dmi.bios.date: 05/17/2012
  dmi.bios.vendor: Dell Inc.
  dmi.bios.version: A07
  dmi.board.name: 05GV6H
  dmi.board.vendor: Dell Inc.
  dmi.board.version: A00
  dmi.chassis.type: 8
  dmi.chassis.vendor: Dell Inc.
  dmi.chassis.version: A07
  dmi.modalias: 
dmi:bvnDellInc.:bvrA07:bd05/17/2012:svnDellInc.:pnVostro3560:pvrA07:rvnDellInc.:rn05GV6H:rvrA00:cvnDellInc.:ct8:cvrA07:
  dmi.product.name: Vostro 3560
  dmi.product.version: A07
  dmi.sys.vendor: Dell Inc.
  nmcli-dev:
   DEVICE     TYPE              STATE         DBUS-PATH                         
         
   wlan0      802-11-wireless   connected     
/org/freedesktop/NetworkManager/Devices/1  
   eth0       802-3-ethernet    unavailable   
/org/freedesktop/NetworkManager/Devices/0
  nmcli-nm:
   RUNNING         VERSION    STATE           NET-ENABLED   WIFI-HARDWARE   
WIFI       WWAN-HARDWARE   WWAN      
   running         0.9.4.0    connected       enabled       enabled         
enabled    enabled         disabled

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