WiFi problem on Sony VAIO Z

Here's all the system info:

Reading state information... Done
grep is already the newest version.
hwinfo is already the newest version.
0 upgraded, 0 newly installed, 0 to remove and 0 not upgraded.
  *-network
       description: Ethernet interface
       product: 82577LC Gigabit Network Connection
       vendor: Intel Corporation
       physical id: 19
       bus info: pci@0000:00:19.0
       logical name: eth0
       version: 05
       serial: 00:24:be:d9:05:08
       size: 100Mbit/s
       capacity: 1Gbit/s
       width: 32 bits
       clock: 33MHz
       capabilities: pm msi bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=e1000e driverversion=1.2.20-k2 duplex=full firmware=0.12-6 ip=10.0.1.7 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
       resources: irq:41 memory:d7800000-d781ffff memory:d7825000-d7825fff ioport:7040(size=32)
  *-network DISABLED
       description: Wireless interface
       product: Centrino Advanced-N 6200
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:02:00.0
       logical name: wlan0
       version: 35
       serial: 58:94:6b:c2:0e:d4
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlagn driverversion=2.6.38-7-generic firmware=9.221.4.1 build 25532 latency=0 link=no multicast=yes wireless=IEEE 802.11abg
       resources: irq:44 memory:d6800000-d6801fff
0: sony-wifi: Wireless LAN
 Soft blocked: no
 Hard blocked: yes
1: sony-bluetooth: Bluetooth
 Soft blocked: no
 Hard blocked: yes
2: sony-wwan: Wireless WAN
 Soft blocked: no
 Hard blocked: yes
3: phy0: Wireless LAN
 Soft blocked: no
 Hard blocked: yes
lo Interface doesn't support scanning.

eth0 Interface doesn't support scanning.

wlan0 Interface doesn't support scanning : Network is down

# This file describes the network interfaces available on your system
# and how to activate them. For more information, see interfaces(5).

# The loopback network interface
auto lo
iface lo inet loopback

# The primary network interface
#auto eth0
#iface eth0 inet dhcp

auto wlan0
iface wlan0 inet dhcp
wireless-essid roadrunner.sux
wireless-key 20102010201020102010201020
wireless-channel 11
wireless-mode managed
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=11.04
DISTRIB_CODENAME=natty
DISTRIB_DESCRIPTION="Ubuntu Natty (development branch)"
00:00.0 Host bridge [0600]: Intel Corporation Core Processor DRAM Controller [8086:0044] (rev 02)
00:01.0 PCI bridge [0604]: Intel Corporation Core Processor PCI Express x16 Root Port [8086:0045] (rev 02)
00:02.0 VGA compatible controller [0300]: Intel Corporation Core Processor Integrated Graphics Controller [8086:0046] (rev 02)
00:16.0 Communication controller [0780]: Intel Corporation 5 Series/3400 Series Chipset HECI Controller [8086:3b64] (rev 06)
00:19.0 Ethernet controller [0200]: Intel Corporation 82577LC Gigabit Network Connection [8086:10eb] (rev 05)
00:1a.0 USB Controller [0c03]: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller [8086:3b3c] (rev 05)
00:1b.0 Audio device [0403]: Intel Corporation 5 Series/3400 Series Chipset High Definition Audio [8086:3b56] (rev 05)
00:1c.0 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 1 [8086:3b42] (rev 05)
00:1c.1 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 2 [8086:3b44] (rev 05)
00:1c.2 PCI bridge [0604]: Intel Corporation 5 Series/3400 Series Chipset PCI Express Root Port 3 [8086:3b46] (rev 05)
00:1d.0 USB Controller [0c03]: Intel Corporation 5 Series/3400 Series Chipset USB2 Enhanced Host Controller [8086:3b34] (rev 05)
00:1e.0 PCI bridge [0604]: Intel Corporation 82801 Mobile PCI Bridge [8086:2448] (rev a5)
00:1f.0 ISA bridge [0601]: Intel Corporation Mobile 5 Series Chipset LPC Interface Controller [8086:3b0b] (rev 05)
00:1f.2 RAID bus controller [0104]: Intel Corporation Mobile 82801 SATA RAID Controller [8086:282a] (rev 05)
00:1f.3 SMBus [0c05]: Intel Corporation 5 Series/3400 Series Chipset SMBus Controller [8086:3b30] (rev 05)
00:1f.6 Signal processing controller [1180]: Intel Corporation 5 Series/3400 Series Chipset Thermal Subsystem [8086:3b32] (rev 05)
01:00.0 VGA compatible controller [0300]: nVidia Corporation GT216 [GeForce GT 330M] [10de:0a2b] (rev a2)
01:00.1 Audio device [0403]: nVidia Corporation High Definition Audio Controller [10de:0be2] (rev a1)
02:00.0 Network controller [0280]: Intel Corporation Centrino Advanced-N 6200 [8086:422c] (rev 35)
03:00.0 SD Host controller [0805]: Ricoh Co Ltd MMC/SD Host Controller [1180:e822]
03:00.1 System peripheral [0880]: Ricoh Co Ltd Memory Stick Host Controller [1180:e230]
03:00.4 SD Host controller [0805]: Ricoh Co Ltd MMC/SD Host Controller [1180:e822]
3f:00.0 Host bridge [0600]: Intel Corporation Core Processor QuickPath Architecture Generic Non-core Registers [8086:2c62] (rev 02)
3f:00.1 Host bridge [0600]: Intel Corporation Core Processor QuickPath Architecture System Address Decoder [8086:2d01] (rev 02)
3f:02.0 Host bridge [0600]: Intel Corporation Core Processor QPI Link 0 [8086:2d10] (rev 02)
3f:02.1 Host bridge [0600]: Intel Corporation Core Processor QPI Physical 0 [8086:2d11] (rev 02)
3f:02.2 Host bridge [0600]: Intel Corporation Core Processor Reserved [8086:2d12] (rev 02)
3f:02.3 Host bridge [0600]: Intel Corporation Core Processor Reserved [8086:2d13] (rev 02)
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 004: ID 05ca:18b7 Ricoh Co., Ltd
Bus 001 Device 003: ID 147e:1001 Upek
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
H/W path Device Class Description
=========================================================
                               system VPCZ1390X (N/A)
/0 bus VAIO
/0/0 memory 1MiB BIOS
/0/7 memory 8GiB System Memory
/0/7/0 memory 4GiB SODIMM
/0/7/1 memory 4GiB SODIMM
/0/d processor Intel(R) Core(TM) i7 CPU M 6
/0/d/e memory 4MiB L3 cache
/0/d/f memory 128KiB L1 cache
/0/d/10 memory 512KiB L2 cache
/0/100 bridge Core Processor DRAM Controller
/0/100/1 bridge Core Processor PCI Express x16 Roo
/0/100/1/0 display GT216 [GeForce GT 330M]
/0/100/1/0.1 multimedia High Definition Audio Controller
/0/100/2 display Core Processor Integrated Graphics
/0/100/16 communication 5 Series/3400 Series Chipset HECI
/0/100/19 eth0 network 82577LC Gigabit Network Connection
/0/100/1a bus 5 Series/3400 Series Chipset USB2
/0/100/1b multimedia 5 Series/3400 Series Chipset High
/0/100/1c bridge 5 Series/3400 Series Chipset PCI E
/0/100/1c/0 wlan0 network Centrino Advanced-N 6200
/0/100/1c.1 bridge 5 Series/3400 Series Chipset PCI E
/0/100/1c.1/0 generic MMC/SD Host Controller
/0/100/1c.1/0.1 generic Memory Stick Host Controller
/0/100/1c.1/0.4 generic MMC/SD Host Controller
/0/100/1c.2 bridge 5 Series/3400 Series Chipset PCI E
/0/100/1d bus 5 Series/3400 Series Chipset USB2
/0/100/1e bridge 82801 Mobile PCI Bridge
/0/100/1f bridge Mobile 5 Series Chipset LPC Interf
/0/100/1f.2 scsi0 storage Mobile 82801 SATA RAID Controller
/0/100/1f.2/0 /dev/sda disk 64GB TOSHIBA THNSNC06
/0/100/1f.2/0/1 /dev/sda1 volume 51GiB EXT4 volume
/0/100/1f.2/0/2 /dev/sda2 volume 7860MiB Extended partition
/0/100/1f.2/0/2/5 /dev/sda5 volume 7860MiB Linux swap / Solaris parti
/0/100/1f.2/1 /dev/cdrom disk DVD-RAM UJ892AS
/0/100/1f.2/0.0.0 /dev/sdb disk 64GB TOSHIBA THNSNC06
/0/100/1f.3 bus 5 Series/3400 Series Chipset SMBus
/0/100/1f.6 generic 5 Series/3400 Series Chipset Therm
/0/101 bridge Core Processor QuickPath Architect
/0/102 bridge Core Processor QuickPath Architect
/0/103 bridge Core Processor QPI Link 0
/0/104 bridge Core Processor QPI Physical 0
/0/105 bridge Core Processor Reserved
/0/106 bridge Core Processor Reserved
Linux schock-natty 2.6.38-7-generic #36-Ubuntu SMP Fri Mar 18 23:18:58 UTC 2011 x86_64 x86_64 x86_64 GNU/Linux
[ 0.000000] No AGP bridge found
[ 0.000000] No NUMA configuration found
[ 0.000000] No AGP bridge found
[ 0.932569] [Firmware Bug]: ACPI: BIOS _OSI(Linux) query ignored
[ 1.147208] ACPI: No dock devices found.
[ 1.147210] HEST: Table not found.
[ 1.161206] usbcore: registered new interface driver usbfs
[ 1.161214] usbcore: registered new interface driver hub
[ 1.161230] usbcore: registered new device driver usb
[ 1.161722] hpet0: 8 comparators, 64-bit 14.318180 MHz counter
[ 1.163738] Switching to clocksource hpet
[ 1.169979] pnp: PnP ACPI: found 12 devices
[ 1.171986] Switched to NOHz mode on CPU #0
[ 1.172060] Switched to NOHz mode on CPU #1
[ 1.172082] Switched to NOHz mode on CPU #3
[ 1.172122] Switched to NOHz mode on CPU #2
[ 1.226654] input: Lid Switch as /devices/LNXSYSTM:00/device:00/PNP0C0D:00/input/input0
[ 1.226973] ACPI: Lid Switch [LID0]
[ 1.229618] ERST: Table is not found!
[ 1.397031] i2c-core: driver [adp5520] using legacy suspend method
[ 1.397032] i2c-core: driver [adp5520] using legacy resume method
[ 1.423435] hub 1-0:1.0: USB hub found
[ 1.443384] hub 2-0:1.0: USB hub found
[ 1.446797] device-mapper: multipath: version 1.2.0 loaded
[ 1.446800] device-mapper: multipath round-robin: version 1.0.0 loaded
[ 1.449151] BIOS EDD facility v0.16 2004-Jun-25, 0 devices found
[ 1.546325] sdhci-pci 0000:03:00.0: SDHCI controller found [1180:e822] (rev 0)
[ 1.546414] mmc0: no vmmc regulator found
[ 1.546512] sdhci-pci 0000:03:00.4: SDHCI controller found [1180:e822] (rev 0)
[ 1.546572] mmc1: no vmmc regulator found
[ 1.580449] VGA switcheroo: detected DSM switching method \_SB_.PCI0.P0P2.DGPU handle
[ 1.587340] [drm] nouveau 0000:01:00.0: ... BIOS signature not found
[ 1.587345] [drm] nouveau 0000:01:00.0: ... BIOS signature not found
[ 1.587451] [drm] nouveau 0000:01:00.0: ... BIOS signature not found
[ 1.742807] usb 1-1: new high speed USB device using ehci_hcd and address 2
[ 1.863725] e1000e 0000:00:19.0: eth0: (PCI Express:2.5GB/s:Width x1) 00:24:be:d9:05:08
[ 1.863728] e1000e 0000:00:19.0: eth0: Intel(R) PRO/1000 Network Connection
[ 1.863779] e1000e 0000:00:19.0: eth0: MAC: 9, PHY: 10, PBA No: FFFFFF-0FF
[ 1.893387] hub 1-1:1.0: USB hub found
[ 2.012331] usb 2-1: new high speed USB device using ehci_hcd and address 2
[ 2.163058] hub 2-1:1.0: USB hub found
[ 2.211965] Switching to clocksource tsc
[ 2.242144] usb 1-1.1: new full speed USB device using ehci_hcd and address 3
[ 2.431798] usb 1-1.2: new high speed USB device using ehci_hcd and address 4
[ 45.204901] [drm] nouveau 0000:01:00.0: BIT BIOS found
[ 45.204911] [drm] nouveau 0000:01:00.0: Found Display Configuration Block version 4.0
[ 45.565105] Console: switching to colour frame buffer device 128x48
[ 45.661821] vga_switcheroo: enabled
[ 52.938741] lp: driver loaded but no devices found
[ 52.992516] intel ips 0000:00:1f.6: CPU TDP doesn't match expected value (found 26, expected 29)
[ 53.051478] uvcvideo: Found UVC 1.00 device <unnamed> (05ca:18b7)
[ 53.053569] input: UVC Camera (05ca:18b7) as /devices/pci0000:00/0000:00:1a.0/usb1/1-1/1-1.2/1-1.2:1.0/input/input7
[ 53.053654] usbcore: registered new interface driver uvcvideo
[ 53.282734] iwlagn: Intel(R) Wireless WiFi Link AGN driver for Linux, in-tree:
[ 53.282738] iwlagn: Copyright(c) 2003-2010 Intel Corporation
[ 53.282813] iwlagn 0000:02:00.0: PCI INT A -> GSI 16 (level, low) -> IRQ 16
[ 53.282823] iwlagn 0000:02:00.0: setting latency timer to 64
[ 53.282865] iwlagn 0000:02:00.0: Detected Intel(R) Centrino(R) Advanced-N 6200 AGN, REV=0x74
[ 53.299024] iwlagn 0000:02:00.0: device EEPROM VER=0x436, CALIB=0x6
[ 53.299027] iwlagn 0000:02:00.0: Device SKU: 0Xb
[ 53.299786] iwlagn 0000:02:00.0: Tunable channels: 13 802.11bg, 24 802.11a channels
[ 53.299869] iwlagn 0000:02:00.0: irq 44 for MSI/MSI-X
[ 53.400871] iwlagn 0000:02:00.0: loaded firmware version 9.221.4.1 build 25532
[ 53.521733] ieee80211 phy0: Selected rate control algorithm 'iwl-agn-rs'
[ 53.700690] input: HDA Intel Headphone as /devices/pci0000:00/0000:00:1b.0/sound/card0/input8
[ 53.810360] ADDRCONF(NETDEV_UP): eth0: link is not ready
[ 55.408408] e1000e: eth0 NIC Link is Up 100 Mbps Full Duplex, Flow Control: None
[ 55.408414] e1000e 0000:00:19.0: eth0: 10/100 speed: disabling TSO
[ 55.409147] ADDRCONF(NETDEV_CHANGE): eth0: link becomes ready
[ 60.062419] hda-intel: IRQ timing workaround is activated for card #1. Suggest a bigger bdl_pos_adj.
[ 65.877649] eth0: no IPv6 routers present
lo no wireless extensions.

eth0 no wireless extensions.

wlan0 IEEE 802.11abg ESSID:off/any
          Mode:Managed Frequency:2.462 GHz Access Point: Not-Associated
          Tx-Power=off
          Retry long limit:7 RTS thr:off Fragment thr:off
          Power Management:off

# which ath5k cannot recover. To prevent this condition, stop
blacklist ath_pci
blacklist eth1394
# replaced by p54pci
blacklist prism54
# replaced by b43 and ssb.
blacklist bcm43xx
blacklist uart6850
blacklist twl4030_wdt
options iwlagn 11n_disable=1
> hal.1: read hal dataprocess 13422: arguments to dbus_move_error() were incorrect, assertion "(dest) == NULL || !dbus_error_is_set ((dest))" failed in file dbus-errors.c line 280.
This is normally a bug in some application using the D-Bus library.
libhal.c 3483 : Error unsubscribing to signals, error=The name org.freedesktop.Hal was not provided by any .service files
12: PCI 19.0: 0200 Ethernet controller
  [Created at pci.318]
  Unique ID: rBUF.JOO2GQYO4h6
  SysFS ID: /devices/pci0000:00/0000:00:19.0
  SysFS BusID: 0000:00:19.0
  Hardware Class: network
  Model: "Intel Ethernet controller"
  Vendor: pci 0x8086 "Intel Corporation"
  Device: pci 0x10eb
  SubVendor: pci 0x104d "Sony Corporation"
  SubDevice: pci 0x905a
  Revision: 0x05
  Driver: "e1000e"
  Driver Modules: "e1000e"
  Device File: eth0
  Memory Range: 0xd7800000-0xd781ffff (rw,non-prefetchable)
  Memory Range: 0xd7825000-0xd7825fff (rw,non-prefetchable)
  I/O Ports: 0x7040-0x705f (rw)
  IRQ: 41 (75396 events)
  HW Address: 00:24:be:d9:05:08
  Link detected: yes
  Module Alias: "pci:v00008086d000010EBsv0000104Dsd0000905Abc02sc00i00"
  Driver Info #0:
    Driver Status: e1000e is active
    Driver Activation Cmd: "modprobe e1000e"
  Config Status: cfg=new, avail=yes, need=no, active=unknown

26: PCI 200.0: 0282 WLAN controller
  [Created at pci.318]
  Unique ID: y9sn.JsGId2s67K7
  Parent ID: z8Q3.rix2TUtEUu8
  SysFS ID: /devices/pci0000:00/0000:00:1c.0/0000:02:00.0
  SysFS BusID: 0000:02:00.0
  Hardware Class: network
  Model: "Intel WLAN controller"
  Vendor: pci 0x8086 "Intel Corporation"
  Device: pci 0x422c
  SubVendor: pci 0x8086 "Intel Corporation"
  SubDevice: pci 0x1301
  Revision: 0x35
  Driver: "iwlagn"
  Driver Modules: "iwlagn"
  Device File: wlan0
  Features: WLAN
  Memory Range: 0xd6800000-0xd6801fff (rw,non-prefetchable)
  IRQ: 44 (no events)
  HW Address: 58:94:6b:c2:0e:d4
  Link detected: no
  WLAN channels: 1 2 3 4 5 6 7 8 9 10 11 12 13 36 40 44 48 52 56 60 64 100 104 108 112 116 120 124 128 132 136 140
  WLAN frequencies: 2.412 2.417 2.422 2.427 2.432 2.437 2.442 2.447 2.452 2.457 2.462 2.467 2.472 5.18 5.2 5.22 5.24 5.26 5.28 5.3 5.32 5.5 5.52 5.54 5.56 5.58 5.6 5.62 5.64 5.66 5.68 5.7
  WLAN encryption modes: WEP40 WEP104 TKIP CCMP
  WLAN authentication modes: open sharedkey wpa-psk wpa-eap
  Module Alias: "pci:v00008086d0000422Csv00008086sd00001301bc02sc80i00"
  Driver Info #0:
    Driver Status: iwlagn is active
    Driver Activation Cmd: "modprobe iwlagn"
  Config Status: cfg=new, avail=yes, need=no, active=unknown
  Attached to: #15 (PCI bridge)

[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
Module Size Used by
binfmt_misc 17565 1
sha256_generic 21031 2
aesni_intel 55161 490
cryptd 20510 9 aesni_intel
aes_x86_64 17208 1 aesni_intel
aes_generic 38279 2 aesni_intel,aes_x86_64
parport_pc 36959 0
ppdev 17113 0
dm_crypt 22993 1
snd_hda_codec_hdmi 28103 4
joydev 17606 0
snd_hda_codec_realtek 336647 1
snd_hda_intel 33211 2
snd_hda_codec 103804 3 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel
snd_hwdep 13604 1 snd_hda_codec
arc4 12529 2
snd_pcm 96625 3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_seq_midi 13324 0
iwlagn 333500 0
tpm_infineon 17572 0
snd_rawmidi 30486 1 snd_seq_midi
snd_seq_midi_event 14899 1 snd_seq_midi
iwlcore 167503 1 iwlagn
snd_seq 61621 2 snd_seq_midi,snd_seq_midi_event
uvcvideo 68099 0
mac80211 294370 2 iwlagn,iwlcore
videodev 82052 1 uvcvideo
v4l2_compat_ioctl32 17078 1 videodev
snd_timer 29602 2 snd_pcm,snd_seq
psmouse 73535 0
snd_seq_device 14462 3 snd_seq_midi,snd_rawmidi,snd_seq
serio_raw 13166 0
intel_ips 18097 0
cfg80211 178528 3 iwlagn,iwlcore,mac80211
sony_laptop 39880 0
snd 67382 14 snd_hda_codec_hdmi,snd_hda_codec_realtek,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
tpm_tis 18537 0
soundcore 12680 1 snd
tpm 22267 2 tpm_infineon,tpm_tis
tpm_bios 13684 1 tpm
snd_page_alloc 18529 2 snd_hda_intel,snd_pcm
lp 17825 0
parport 46458 3 parport_pc,ppdev,lp
nouveau 682322 1
ttm 76664 1 nouveau
i915 514985 2
ahci 25951 2
sdhci_pci 13989 0
sdhci 27387 1 sdhci_pci
drm_kms_helper 42136 2 nouveau,i915
e1000e 159096 0
libahci 26642 1 ahci
drm 227573 6 nouveau,ttm,i915,drm_kms_helper
i2c_algo_bit 13400 2 nouveau,i915
video 19438 2 nouveau,i915