Problème de connection wifi avec ubuntu 9.10

Bonjour,

comme le dit le titre j'ai un probleme de connection wifi, ca passe en filiaire mais rien en wifi, j'ai vérifier mes pilotes périphériques, mais aucun pilote propriétaire n'est utilisé sur cet ordinateur!! Je précise suis novice en informatique! voici quelques renseignements, si quelqu'un pouvais m'aider:

tof@tof:~$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=9.10
DISTRIB_CODENAME=karmic
DISTRIB_DESCRIPTION="Ubuntu 9.10"

tof@tof:~$ lsusb
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub

tof@tof:~$ lspci
00:00.0 Host bridge: Intel Corporation Mobile PM965/GM965/GL960 Memory Controller Hub (rev 0c)
00:02.0 VGA compatible controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 0c)
00:02.1 Display controller: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (rev 0c)
00:1a.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #5 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801H (ICH8 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 2 (rev 03)
00:1c.2 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 3 (rev 03)
00:1c.3 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 4 (rev 03)
00:1c.4 PCI bridge: Intel Corporation 82801H (ICH8 Family) PCI Express Port 5 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801H (ICH8 Family) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801H (ICH8 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev f3)
00:1f.0 ISA bridge: Intel Corporation 82801HEM (ICH8M) LPC Interface Controller (rev 03)
00:1f.2 IDE interface: Intel Corporation 82801HBM/HEM (ICH8M/ICH8M-E) SATA IDE Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801H (ICH8 Family) SMBus Controller (rev 03)
03:00.0 Ethernet controller: Atheros Communications Inc. AR5212 802.11abg NIC (rev 01)
04:00.0 Ethernet controller: Broadcom Corporation NetLink BCM5787M Gigabit Ethernet PCI Express (rev 02)
15:00.0 CardBus bridge: Ricoh Co Ltd RL5c476 II (rev b6)
15:00.1 FireWire (IEEE 1394): Ricoh Co Ltd R5C832 IEEE 1394 Controller (rev 02)

tof@tof:~$ lspci -nn | grep -i net
03:00.0 Ethernet controller [0200]: Atheros Communications Inc. AR5212 802.11abg NIC [168c:1014] (rev 01)
04:00.0 Ethernet controller [0200]: Broadcom Corporation NetLink BCM5787M Gigabit Ethernet PCI Express [14e4:1693] (rev 02)

tof@tof:~$ sudo lshw -C network
[sudo] password for tof:
*-network
description: Wireless interface
product: AR5212 802.11abg NIC
vendor: Atheros Communications Inc.
physical id: 0
bus info: pci@0000:03:00.0
logical name: wmaster0
version: 01
serial: 00:1c:26:92:4e:39
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list logical ethernet physical wireless
configuration: broadcast=yes driver=ath5k latency=0 multicast=yes wireless=IEEE 802.11abg
resources: irq:17 memory:f7f00000-f7f0ffff
*-network
description: Ethernet interface
product: NetLink BCM5787M Gigabit Ethernet PCI Express
vendor: Broadcom Corporation
physical id: 0
bus info: pci@0000:04:00.0
logical name: eth0
version: 02
serial: 00:16:d3:bb:7f:4d
size: 100MB/s
capacity: 1GB/s
width: 64 bits
clock: 33MHz
capabilities: pm vpd msi pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.99 duplex=full firmware=sb v2.09 ip=192.168.1.12 latency=0 link=yes multicast=yes port=twisted pair speed=100MB/s
resources: irq:30 memory:f8200000-f820ffff

tof@tof:~$ lsmod
Module Size Used by
binfmt_misc 8356 1
ppdev 6688 0
joydev 10240 0
snd_hda_codec_analog 59292 1
arc4 1660 2
ecb 2524 2
pcmcia 36808 0
snd_hda_intel 26920 2
snd_hda_codec 75708 2 snd_hda_codec_analog,snd_hda_intel
snd_hwdep 7200 1 snd_hda_codec
snd_pcm_oss 37920 0
snd_mixer_oss 16028 1 snd_pcm_oss
snd_pcm 75296 3 snd_hda_intel,snd_hda_codec,snd_pcm_oss
iptable_filter 3100 0
snd_seq_dummy 2656 0
ip_tables 11692 1 iptable_filter
x_tables 16544 1 ip_tables
snd_seq_oss 28576 0
snd_seq_midi 6432 0
snd_rawmidi 22208 1 snd_seq_midi
snd_seq_midi_event 6940 2 snd_seq_oss,snd_seq_midi
psmouse 56500 0
serio_raw 5280 0
yenta_socket 24296 1
rsrc_nonstatic 11644 1 yenta_socket
pcmcia_core 36528 3 pcmcia,yenta_socket,rsrc_nonstatic
ath5k 124260 0
mac80211 181140 1 ath5k
ath 8060 1 ath5k
cfg80211 93052 3 ath5k,mac80211,ath
snd_seq 50224 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 22276 2 snd_pcm,snd_seq
snd_seq_device 6920 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
snd 59204 16 snd_hda_codec_analog,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
soundcore 7264 1 snd
snd_page_alloc 9156 2 snd_hda_intel,snd_pcm
thinkpad_acpi 67108 0
led_class 4096 2 ath5k,thinkpad_acpi
nvram 7528 1 thinkpad_acpi
lp 8964 0
parport 35340 2 ppdev,lp
fbcon 36640 72
tileblit 2460 1 fbcon
font 8124 1 fbcon
bitblit 5372 1 fbcon
softcursor 1756 1 bitblit
tg3 109600 0
ohci1394 29900 0
ieee1394 86596 1 ohci1394
i915 221320 3
drm 159584 3 i915
i2c_algo_bit 5760 1 i915
intel_agp 27484 2 i915
agpgart 34988 2 drm,intel_agp
video 19380 1 i915
output 2780 1 video

tof@tof:~$ iwconfig
lo no wireless extensions.

eth0 no wireless extensions.

wmaster0 no wireless extensions.

wlan0 IEEE 802.11abg ESSID:"Livebox-85aa"
Mode:Managed Frequency:2.457 GHz Access Point: Not-Associated
Tx-Power=20 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality:0 Signal level:0 Noise level:0
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0

tof@tof:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 00:16:d3:bb:7f:4d
inet adr:192.168.1.12 Bcast:192.168.1.255 Masque:255.255.255.0
adr inet6: fe80::216:d3ff:febb:7f4d/64 Scope:Lien
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Packets reçus:7166 erreurs:0 :0 overruns:0 frame:0
TX packets:6726 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:7217536 (7.2 MB) Octets transmis:959088 (959.0 KB)
Interruption:18

lo Link encap:Boucle locale
inet adr:127.0.0.1 Masque:255.0.0.0
adr inet6: ::1/128 Scope:Hôte
UP LOOPBACK RUNNING MTU:16436 Metric:1
Packets reçus:12 erreurs:0 :0 overruns:0 frame:0
TX packets:12 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:0
Octets reçus:720 (720.0 B) Octets transmis:720 (720.0 B)

wlan0 Link encap:Ethernet HWaddr 00:1c:26:92:4e:39
UP BROADCAST MULTICAST MTU:1500 Metric:1
Packets reçus:0 erreurs:0 :0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:0 (0.0 B) Octets transmis:0 (0.0 B)

wmaster0 Link encap:UNSPEC HWaddr 00-1C-26-92-4E-39-00-00-00-00-00-00-00-00-00-00
UP RUNNING MTU:0 Metric:1
Packets reçus:0 erreurs:0 :0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:0 (0.0 B) Octets transmis:0 (0.0 B)

tof@tof:~$ sudo iwlist scan
[sudo] password for tof:
lo Interface doesn't support scanning.

eth0 Interface doesn't support scanning.

wmaster0 Interface doesn't support scanning.

wlan0 Scan completed :
Cell 01 - Address: 00:1E:37:F0:03:6A
Channel:10
Frequency:2.457 GHz (Channel 10)
Quality=65/70 Signal level=-45 dBm
Encryption key:on
ESSID:"Livebox-85aa"
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=0000011979148185
Extra: Last beacon: 6008ms ago
IE: Unknown: 000C4C697665626F782D38356161
IE: Unknown: 010882848B962430486C
IE: Unknown: 03010A
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: Unknown: 32040C121860
IE: Unknown: DD060010180200F0
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00


tof@tof:~$ uname -r -m
2.6.31-19-generic i686
tof@tof:~$ cat /etc/network/interfaces
auto lo
iface lo inet loopback

tof@tof:~$ nm-tool

NetworkManager Tool

State: connected

- Device: eth0 [Auto eth0] ----------------------------------------------------
Type: Wired
Driver: tg3
State: connected
Default: yes
HW Address: 00:16:D3:BB:7F:4D

Capabilities:
Carrier Detect: yes
Speed: 100 Mb/s

Wired Properties
Carrier: on

IPv4 Settings:
Address: 192.168.1.12
Prefix: 24 (255.255.255.0)
Gateway: 192.168.1.1

DNS: 192.168.1.1


- Device: wlan0 ----------------------------------------------------------------
Type: 802.11 WiFi
Driver: ath5k
State: disconnected
Default: no
HW Address: 00:1C:26:92:4E:39

Capabilities:

Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes

Wireless Access Points
Livebox-85aa: Infra, 00:1E:37:F0:03:6A, Freq 2457 MHz, Rate 54 Mb/s, Strength 100 WPA



Merci de votre aide...