<![CDATA[Forum Ubuntu-fr.org / Perte wifi après réinstallation (12.04)]]> http://forum.ubuntu-fr.org/viewtopic.php?id=1128681 Mon, 17 Dec 2012 08:00:31 +0000 FluxBB <![CDATA[Réponse à : Perte wifi après réinstallation (12.04)]]> http://forum.ubuntu-fr.org/viewtopic.php?pid=11900801#p11900801 je recommande plutot le wpa2 AES (appelé aussi WPA2 PSK)
tu as bien enregistrer les changement de cryptage et rebooter le routeur après ?

]]> Mon, 17 Dec 2012 08:00:31 +0000 http://forum.ubuntu-fr.org/viewtopic.php?pid=11900801#p11900801 <![CDATA[Réponse à : Perte wifi après réinstallation (12.04)]]> http://forum.ubuntu-fr.org/viewtopic.php?pid=11896591#p11896591 Merci pour la réponse.
Désolé, je n'ai pas bien compris si tu recommandais WPA1 + TKIP ou WPA2 AES ?
J'ai néanmoins essayé les deux, mais le problème subsiste.
Ce que je ne comprends pas, c'est qu'avec mon installation précédente (aussi 12.04) et même config de routeur, je n'avais pas ce problème...

]]> Sun, 16 Dec 2012 20:22:55 +0000 http://forum.ubuntu-fr.org/viewtopic.php?pid=11896591#p11896591 <![CDATA[Réponse à : Perte wifi après réinstallation (12.04)]]> http://forum.ubuntu-fr.org/viewtopic.php?pid=11765521#p11765521 Salut,

Ton routeur wifi fait a la fois du wpa1 et du wpa2, ce qui est source de dysfonctionnement. . change le cryptage/chiffrement pour soit que du WPA1 TKIP, soit (et mieux) que du WPA2 AES (n'oublie pas d'enregistrer les changements et de redémarrer ton routeur wifi.

Puis re test le wifi une fois que ton routeur aura redémarré.

]]> Wed, 05 Dec 2012 23:03:23 +0000 http://forum.ubuntu-fr.org/viewtopic.php?pid=11765521#p11765521 <![CDATA[Perte wifi après réinstallation (12.04)]]> http://forum.ubuntu-fr.org/viewtopic.php?pid=11765001#p11765001 Après une réinstallation, je perds le wifi après environ 5 min. Néanmoins Network manager m'indique toujours une connexion.
Lorsque je perds la connexion, re-cliquer sur le nom de mon wifi (via Network Manager) réactive la connexion !
Merci d'avance pour le coup-de-pouce smile

Voici ce que me donne wifichek

>>    cat /etc/lsb-release 

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=12.04
DISTRIB_CODENAME=precise
DISTRIB_DESCRIPTION="Ubuntu 12.04.1 LTS"

>>    lsusb 

Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 002 Device 002: ID 8087:0020 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 003: ID 046d:c06c Logitech, Inc. Optical Mouse
Bus 001 Device 004: ID 147e:2016 Upek Biometric Touchchip/Touchstrip Fingerprint Sensor
Bus 001 Device 005: ID 0a5c:217f Broadcom Corp. Bluetooth Controller
Bus 001 Device 006: ID 17ef:480f Lenovo Integrated Webcam [R5U877]
Bus 002 Device 003: ID 05c6:9204 Qualcomm, Inc. 

>>    lspci -k -nn | grep -A 3 -i net 

00:19.0 Ethernet controller [0200]: Intel Corporation 82577LM Gigabit Network Connection [8086:10ea] (rev 06)
	Subsystem: Lenovo Device [17aa:2153]
	Kernel driver in use: e1000e
	Kernel modules: e1000e
--
03:00.0 Network controller [0280]: Intel Corporation Centrino Ultimate-N 6300 [8086:4238] (rev 35)
	Subsystem: Intel Corporation Centrino Ultimate-N 6300 3x3 AGN [8086:1111]
	Kernel driver in use: iwlwifi
	Kernel modules: iwlwifi

>>    sudo lshw -C network 

  *-network
       description: Ethernet interface
       product: 82577LM Gigabit Network Connection
       vendor: Intel Corporation
       physical id: 19
       bus info: pci@0000:00:19.0
       logical name: eth0
       version: 06
       serial: f0:de:f1:36:3a:5e
       size: 1Gbit/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=1.5.1-k duplex=full firmware=0.12-1 ip=192.168.0.17 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
       resources: irq:53 memory:f2600000-f261ffff memory:f2625000-f2625fff ioport:1820(size=32)
  *-network
       description: Wireless interface
       product: Centrino Ultimate-N 6300
       vendor: Intel Corporation
       physical id: 0
       bus info: pci@0000:03:00.0
       logical name: wlan0
       version: 35
       serial: 00:24:d7:7a:bb:44
       width: 64 bits
       clock: 33MHz
       capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=iwlwifi driverversion=3.2.0-34-generic firmware=9.221.4.1 build 25532 ip=192.168.0.10 latency=0 link=yes multicast=yes wireless=IEEE 802.11abgn
       resources: irq:55 memory:f2000000-f2001fff

>>    lsmod 

Module                  Size  Used by
usblp                  18307  0 
ip6table_filter        12815  0 
ip6_tables             27864  1 ip6table_filter
iptable_filter         12810  0 
ip_tables              27473  1 iptable_filter
x_tables               29846  4 ip6table_filter,ip6_tables,iptable_filter,ip_tables
rfcomm                 47604  12 
bnep                   18281  2 
parport_pc             32866  0 
ppdev                  17113  0 
binfmt_misc            17540  1 
nouveau               774641  3 
ttm                    76949  1 nouveau
snd_hda_codec_hdmi     32474  4 
drm_kms_helper         46978  1 nouveau
drm                   241921  5 nouveau,ttm,drm_kms_helper
joydev                 17693  0 
i2c_algo_bit           13423  1 nouveau
thinkpad_acpi          81819  0 
uvcvideo               72627  0 
snd_hda_codec_conexant    62358  1 
videodev               98259  1 uvcvideo
snd_hda_intel          33773  4 
snd_seq_midi           13324  0 
snd_hda_codec         127706  3 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_intel
v4l2_compat_ioctl32    17128  1 videodev
snd_rawmidi            30748  1 snd_seq_midi
snd_hwdep              13668  1 snd_hda_codec
snd_seq_midi_event     14899  1 snd_seq_midi
snd_pcm                97188  3 snd_hda_codec_hdmi,snd_hda_intel,snd_hda_codec
snd_seq                61896  2 snd_seq_midi,snd_seq_midi_event
snd_timer              29990  2 snd_pcm,snd_seq
snd_seq_device         14540  3 snd_seq_midi,snd_rawmidi,snd_seq
qcserial               12822  0 
snd                    78855  19 snd_hda_codec_hdmi,thinkpad_acpi,snd_hda_codec_conexant,snd_hda_intel,snd_hda_codec,snd_rawmidi,snd_hwdep,snd_pcm,snd_seq,snd_timer,snd_seq_device
usb_wwan               20491  1 qcserial
usbserial              47077  2 qcserial,usb_wwan
arc4                   12529  2 
soundcore              15091  1 snd
snd_page_alloc         18529  2 snd_hda_intel,snd_pcm
mxm_wmi                12979  1 nouveau
psmouse                97443  0 
wmi                    19256  1 mxm_wmi
nvram                  14413  1 thinkpad_acpi
video                  19596  1 nouveau
iwlwifi               397012  0 
btusb                  18332  2 
mac80211              506816  1 iwlwifi
bluetooth             180104  23 rfcomm,bnep,btusb
cfg80211              205544  2 iwlwifi,mac80211
i7core_edac            28102  0 
edac_core              53746  1 i7core_edac
mei                    41616  0 
tpm_tis                18804  0 
mac_hid                13253  0 
serio_raw              13211  0 
lp                     17799  0 
parport                46562  3 parport_pc,ppdev,lp
usbhid                 47199  0 
hid                    99592  1 usbhid
firewire_ohci          41000  0 
firewire_core          63558  1 firewire_ohci
crc_itu_t              12707  1 firewire_core
sdhci_pci              18826  0 
sdhci                  33205  1 sdhci_pci
e1000e                156715  0 
>>    iwconfig 

wlan0     IEEE 802.11abgn  ESSID:"choupettes"  
          Mode:Managed  Frequency:2.412 GHz  Access Point: 80:C6:AB:1A:5A:16   
          Bit Rate=1 Mb/s   Tx-Power=15 dBm   
          Retry  long limit:7   RTS thr:off   Fragment thr:off
          Power Management:off
          Link Quality=43/70  Signal level=-67 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:6   Missed beacon:0


>>    ifconfig -a 

eth0      Link encap:Ethernet  HWaddr f0:de:f1:36:3a:5e  
          inet addr:192.168.0.17  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::f2de:f1ff:fe36:3a5e/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:97333 errors:0 dropped:0 overruns:0 frame:0
          TX packets:66972 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:120582171 (120.5 MB)  TX bytes:10073377 (10.0 MB)
          Interrupt:20 Memory:f2600000-f2620000 

lo        Link encap:Local Loopback  
          inet addr:127.0.0.1  Mask:255.0.0.0
          inet6 addr: ::1/128 Scope:Host
          UP LOOPBACK RUNNING  MTU:16436  Metric:1
          RX packets:8595 errors:0 dropped:0 overruns:0 frame:0
          TX packets:8595 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:0 
          RX bytes:761713 (761.7 KB)  TX bytes:761713 (761.7 KB)

wlan0     Link encap:Ethernet  HWaddr 00:24:d7:7a:bb:44  
          inet addr:192.168.0.10  Bcast:192.168.0.255  Mask:255.255.255.0
          inet6 addr: fe80::224:d7ff:fe7a:bb44/64 Scope:Link
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          RX packets:5038 errors:0 dropped:0 overruns:0 frame:0
          TX packets:4859 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 txqueuelen:1000 
          RX bytes:3837918 (3.8 MB)  TX bytes:822526 (822.5 KB)


>>    sudo iwlist scan 

wlan0     Scan completed :
          Cell 01 - Address: 80:C6:AB:1A:5A:16
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=45/70  Signal level=-65 dBm  
                    Encryption key:on
                    ESSID:"choupettes"
                    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=000000bc2959218f
                    Extra: Last beacon: 32ms ago
                    IE: Unknown: 000A63686F75706574746573
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 030101
                    IE: Unknown: 2A0106
                    IE: Unknown: 2F0106
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32040C121860
                    IE: Unknown: 2D1AFC181BFFFF000000000000000000000000000000000000000000
                    IE: Unknown: 3D1601001300000000000000000000000000000000000000
                    IE: Unknown: DD090010180203F02C0000
                    IE: WPA Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
          Cell 02 - Address: 00:24:C9:55:1C:60
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=25/70  Signal level=-85 dBm  
                    Encryption key:on
                    ESSID:"xyi-22385"
                    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=0000000000000000
                    Extra: Last beacon: 6756ms ago
                    IE: Unknown: 00097879692D3232333835
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 030101
                    IE: Unknown: 2A0102
                    IE: Unknown: 2F0102
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32040C121860
                    IE: Unknown: 2D1A6C181BFFFF000000000000000000000000000000000000000000
                    IE: Unknown: 3D1601001300000000000000000000000000000000000000
                    IE: Unknown: 4A0E14000A002C01C800140005001900
                    IE: Unknown: 7F0101
                    IE: Unknown: DD990050F204104A00011010440001021041000100103B00010310470010D96C7EFC2F8938F1EFBD6E5148BFA812102100174D6F746F726F6C61204D6F62696C6974792C20496E632E10230007373634372D343710240007373634372D34371042000C3135373939363632303839361054000800060050F2040001101100114D6F746F726F6C6120576972656C657373100800020080103C000101
                    IE: Unknown: DD090010180200F02C0000
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
          Cell 03 - Address: 00:21:1E:67:48:70
                    Channel:2
                    Frequency:2.417 GHz (Channel 2)
                    Quality=42/70  Signal level=-68 dBm  
                    Encryption key:on
                    ESSID:"gismo"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s
                    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=0000007e87c5c19f
                    Extra: Last beacon: 6548ms ago
                    IE: Unknown: 00056769736D6F
                    IE: Unknown: 010582848B962C
                    IE: Unknown: 030102
                    IE: Unknown: 2A0107
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32080C1218243048606C
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : TKIP
                        Authentication Suites (1) : PSK
          Cell 04 - Address: B8:C7:5D:08:6D:95
                    Channel:1
                    Frequency:2.412 GHz (Channel 1)
                    Quality=25/70  Signal level=-85 dBm  
                    Encryption key:on
                    ESSID:"PNFrank"
                    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=000000a5e8bd6be2
                    Extra: Last beacon: 6744ms ago
                    IE: Unknown: 0007504E4672616E6B
                    IE: Unknown: 010882848B960C121824
                    IE: Unknown: 030101
                    IE: Unknown: 0706555320010B1E
                    IE: Unknown: 2A0102
                    IE: Unknown: 32043048606C
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 2D1AAD511BFFFFFF0000000000000000000000000000000000000000
                    IE: Unknown: 3D1601001100000000000000000000000000000000000000
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101030003A4000027A4000042435E0062322F00
                    IE: Unknown: DD0700039301750320
                    IE: Unknown: DD070017F203020180
                    IE: Unknown: DD0E0017F20700010106B8C75D086D95
                    IE: Unknown: DD0B0017F20100010200000007
          Cell 05 - Address: 00:26:24:3E:CF:72
                    Channel:3
                    Frequency:2.422 GHz (Channel 3)
                    Quality=42/70  Signal level=-68 dBm  
                    Encryption key:on
                    ESSID:"robo"
                    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=000000045714c0dc
                    Extra: Last beacon: 6576ms ago
                    IE: Unknown: 0004726F626F
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 030103
                    IE: Unknown: 2A0104
                    IE: Unknown: 2F0104
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32040C121860
                    IE: Unknown: 2D1AFC181BFFFF000000000000000000000000000000000000000000
                    IE: Unknown: 3D1603001700000000000000000000000000000000000000
                    IE: Unknown: DD090010180204F02C0000
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
          Cell 06 - Address: 00:1F:C4:0C:B5:40
                    Channel:4
                    Frequency:2.427 GHz (Channel 4)
                    Quality=47/70  Signal level=-63 dBm  
                    Encryption key:on
                    ESSID:"drx-84718"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s
                    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=00000029db27c1a0
                    Extra: Last beacon: 6348ms ago
                    IE: Unknown: 00096472782D3834373138
                    IE: Unknown: 010582848B962C
                    IE: Unknown: 030104
                    IE: Unknown: 2A0104
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32080C1218243048606C
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : TKIP
                        Authentication Suites (1) : PSK
          Cell 07 - Address: 28:BE:9B:34:2F:C0
                    Channel:4
                    Frequency:2.427 GHz (Channel 4)
                    Quality=24/70  Signal level=-86 dBm  
                    Encryption key:on
                    ESSID:"Citycable-bce8"
                    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=0000001ffab67357
                    Extra: Last beacon: 6532ms ago
                    IE: Unknown: 000E436974796361626C652D62636538
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 030104
                    IE: Unknown: 2A0100
                    IE: Unknown: 2F0100
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32040C121860
                    IE: Unknown: 2D1AFC181BFFFF000000000000000000000000000000000000000000
                    IE: Unknown: 3D1604081100000000000000000000000000000000000000
                    IE: Unknown: DD090010180200F02C0000
                    IE: WPA Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
          Cell 08 - Address: 80:C6:AB:1A:EE:7F
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=42/70  Signal level=-68 dBm  
                    Encryption key:on
                    ESSID:"Rio De Janeiro"
                    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=0000008ea3ae9a09
                    Extra: Last beacon: 6308ms ago
                    IE: Unknown: 000E52696F204465204A616E6569726F
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 030106
                    IE: Unknown: 2A0100
                    IE: Unknown: 2F0100
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32040C121860
                    IE: Unknown: 2D1AFC181BFFFF000000000000000000000000000000000000000000
                    IE: Unknown: 3D1606081500000000000000000000000000000000000000
                    IE: Unknown: DD090010180203F02C0000
                    IE: WPA Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
          Cell 09 - Address: 50:67:F0:ED:95:20
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=42/70  Signal level=-68 dBm  
                    Encryption key:on
                    ESSID:"ZyXEL_ABGN_1"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
                              18 Mb/s; 36 Mb/s; 54 Mb/s
                    Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
                    Mode:Master
                    Extra:tsf=00000aea549046e7
                    Extra: Last beacon: 6336ms ago
                    IE: Unknown: 000C5A7958454C5F4142474E5F31
                    IE: Unknown: 010882848B961224486C
                    IE: Unknown: 030106
                    IE: Unknown: 2A0104
                    IE: Unknown: 32040C183060
                    IE: Unknown: 2D1A6E1017FFFF0000010000000000000000000000000C0000000000
                    IE: Unknown: 3D1606000600000000000000000000000000000000000000
                    IE: Unknown: 3E0100
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
                    IE: Unknown: 7F0101
                    IE: Unknown: DD07000C4304000000
                    IE: Unknown: 0706434820010E10
                    IE: Unknown: DD1E00904C336E1017FFFF0000010000000000000000000000000C0000000000
                    IE: Unknown: DD1A00904C3406000600000000000000000000000000000000000000
          Cell 10 - Address: 80:C6:AB:2D:A2:7A
                    Channel:6
                    Frequency:2.437 GHz (Channel 6)
                    Quality=27/70  Signal level=-83 dBm  
                    Encryption key:on
                    ESSID:"Citycable-de46"
                    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=000001aaef0b105d
                    Extra: Last beacon: 6324ms ago
                    IE: Unknown: 000E436974796361626C652D64653436
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 030106
                    IE: Unknown: 2A0100
                    IE: Unknown: 2F0100
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32040C121860
                    IE: Unknown: 2D1AFC181BFFFF000000000000000000000000000000000000000000
                    IE: Unknown: 3D1606081500000000000000000000000000000000000000
                    IE: Unknown: DD090010180202F02C0000
                    IE: WPA Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
          Cell 11 - Address: 00:0F:CC:63:CC:74
                    Channel:7
                    Frequency:2.442 GHz (Channel 7)
                    Quality=32/70  Signal level=-78 dBm  
                    Encryption key:on
                    ESSID:"jaguar"
                    Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s
                    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=0000005bd40fb843
                    Extra: Last beacon: 6168ms ago
                    IE: Unknown: 00066A6167756172
                    IE: Unknown: 010582848B962C
                    IE: Unknown: 030107
                    IE: Unknown: 2A0100
                    IE: Unknown: 32080C1218243048606C
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (1) : TKIP
                        Authentication Suites (1) : PSK
          Cell 12 - Address: DC:0B:1A:C9:E6:49
                    Channel:11
                    Frequency:2.462 GHz (Channel 11)
                    Quality=38/70  Signal level=-72 dBm  
                    Encryption key:on
                    ESSID:"CPHV"
                    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=000001aea49df9e5
                    Extra: Last beacon: 5912ms ago
                    IE: Unknown: 000443504856
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 03010B
                    IE: Unknown: 2A0102
                    IE: Unknown: 2F0102
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32040C121860
                    IE: Unknown: 2D1A7C181BFFFF000000000000000000000000000000000000000000
                    IE: Unknown: 3D160B080400000000000000000000000000000000000000
                    IE: Unknown: DD770050F204104A00011010440001021041000100103B0001031047001027E92CAAAF16442C798DFEEA3C8196FB10210007506972656C6C691023000D43656E74726F206772616E64651024000630303030303110420004303030311054000800060050F20400011011000753776973734150100800020080
                    IE: Unknown: DD090010180201F0050000
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
                    IE: Unknown: DD1E00904C337C181BFFFF000000000000000000000000000000000000000000
                    IE: Unknown: DD1A00904C340B080400000000000000000000000000000000000000
          Cell 13 - Address: C0:C1:C0:78:56:CA
                    Channel:11
                    Frequency:2.462 GHz (Channel 11)
                    Quality=34/70  Signal level=-76 dBm  
                    Encryption key:on
                    ESSID:"AmeriFrense"
                    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=000000ac5507fe6b
                    Extra: Last beacon: 5924ms ago
                    IE: Unknown: 000B416D6572694672656E7365
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 03010B
                    IE: Unknown: 2A0102
                    IE: Unknown: 2F0102
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32040C121860
                    IE: Unknown: 2D1AFC181BFFFF000000000000000000000000000000000000000000
                    IE: Unknown: 3D160B001300000000000000000000000000000000000000
                    IE: Unknown: 4A0E14000A002C01C800140005001900
                    IE: Unknown: 7F0101
                    IE: Unknown: DD7A0050F204104A00011010440001021041000100103B000103104700102F0F331FF918F8F949764D372361A6DF10210005436973636F1023000D4C696E6B7379732045333030301024000776312E302E30331042000234321054000800060050F20400011011000D4C696E6B737973204533303030100800020084
                    IE: Unknown: DD090010180201F0040000
                    IE: WPA Version 1
                        Group Cipher : TKIP
                        Pairwise Ciphers (2) : CCMP TKIP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
                    IE: Unknown: DD1E00904C33FC181BFFFF000000000000000000000000000000000000000000
                    IE: Unknown: DD1A00904C340B001300000000000000000000000000000000000000
          Cell 14 - Address: 00:26:24:3F:82:B0
                    Channel:13
                    Frequency:2.472 GHz (Channel 13)
                    Quality=25/70  Signal level=-85 dBm  
                    Encryption key:on
                    ESSID:"Amandlio"
                    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=0000007ca417e18b
                    Extra: Last beacon: 5344ms ago
                    IE: Unknown: 0008416D616E646C696F
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 03010D
                    IE: Unknown: 050400010000
                    IE: Unknown: 2A0104
                    IE: Unknown: 2F0104
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32040C121860
                    IE: Unknown: 2D1AFC181BFFFF000000000000000000000000000000000000000000
                    IE: Unknown: 3D160D001700000000000000000000000000000000000000
                    IE: Unknown: DD090010180206F02C0000
                    IE: WPA Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00


>>    uname -r -m 

3.2.0-34-generic x86_64

>>    cat /etc/network/interfaces 

auto lo
iface lo inet loopback


>>    nm-tool 


NetworkManager Tool

State: connected (global)

- Device: wlan0  [choupettes] --------------------------------------------------
  Type:              802.11 WiFi
  Driver:            iwlwifi
  State:             connected
  Default:           no
  HW Address:        00:24:D7:7A:BB:44

  Capabilities:
    Speed:           1 Mb/s

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

  Wireless Access Points (* = current AP)
    robo:            Infra, 00:26:24:3E:CF:72, Freq 2422 MHz, Rate 54 Mb/s, Strength 47 WPA WPA2
    Rio De Janeiro:  Infra, 80:C6:AB:1A:EE:7F, Freq 2437 MHz, Rate 54 Mb/s, Strength 54 WPA WPA2
    AmeriFrense:     Infra, C0:C1:C0:78:56:CA, Freq 2462 MHz, Rate 54 Mb/s, Strength 29 WPA WPA2
    ZyXEL_ABGN_1:    Infra, 50:67:F0:ED:95:20, Freq 2437 MHz, Rate 54 Mb/s, Strength 34 WPA2
    MOLUS1a:         Infra, 00:21:43:63:45:10, Freq 2457 MHz, Rate 54 Mb/s, Strength 77 WPA WPA2
    island-3CA610:   Infra, C0:8A:DE:FC:A6:1B, Freq 2462 MHz, Rate 54 Mb/s, Strength 27 WPA2
    b5jybrqqw2:      Infra, 00:0F:CC:6C:70:BC, Freq 2447 MHz, Rate 54 Mb/s, Strength 39 WPA WPA2
    Citycable-de46:  Infra, 80:C6:AB:2D:A2:7A, Freq 2437 MHz, Rate 54 Mb/s, Strength 22 WPA WPA2
    vsp-11538:       Infra, 00:24:93:26:27:40, Freq 2462 MHz, Rate 54 Mb/s, Strength 30 WPA WPA2
    gismo:           Infra, 00:21:1E:67:48:70, Freq 2417 MHz, Rate 54 Mb/s, Strength 55 WPA WPA2
    FRITZ!Box Fon WLAN 7390: Infra, 24:65:11:50:55:E4, Freq 2412 MHz, Rate 54 Mb/s, Strength 22 WPA WPA2
    CPHV:            Infra, DC:0B:1A:C9:E6:49, Freq 2462 MHz, Rate 54 Mb/s, Strength 47 WPA WPA2
    FatAppartAvecChienBlanc: Infra, 00:26:42:39:7A:00, Freq 2412 MHz, Rate 54 Mb/s, Strength 30 WPA WPA2
    drx-84718:       Infra, 00:1F:C4:0C:B5:40, Freq 2427 MHz, Rate 54 Mb/s, Strength 45 WPA WPA2
    PNFrank:         Infra, B8:C7:5D:08:6D:95, Freq 2412 MHz, Rate 54 Mb/s, Strength 22 WPA WPA2
    CristianWiFi:    Infra, E0:46:9A:69:08:4B, Freq 2437 MHz, Rate 54 Mb/s, Strength 25 WPA2
    FRITZ!Box Fon WLAN 7390: Infra, C0:25:06:D5:70:88, Freq 2452 MHz, Rate 54 Mb/s, Strength 22 WPA WPA2
    Belkin.5FFE:     Infra, 94:44:52:A8:4F:FE, Freq 2462 MHz, Rate 54 Mb/s, Strength 19 WPA WPA2
    Amandlio:        Infra, 00:26:24:3F:82:B0, Freq 2472 MHz, Rate 54 Mb/s, Strength 22 WPA WPA2
    Yapalace:        Infra, 00:14:D1:90:EB:AA, Freq 2462 MHz, Rate 54 Mb/s, Strength 20 WPA
    *choupettes:     Infra, 80:C6:AB:1A:5A:16, Freq 2412 MHz, Rate 54 Mb/s, Strength 53 WPA WPA2
    jaguar:          Infra, 00:0F:CC:63:CC:74, Freq 2442 MHz, Rate 54 Mb/s, Strength 35 WPA
    enzo pc_Network: Infra, E0:91:F5:CD:7F:F4, Freq 2437 MHz, Rate 54 Mb/s, Strength 19 WPA2
    5573 2264:       Infra, 00:0F:CC:B7:BB:78, Freq 2472 MHz, Rate 54 Mb/s, Strength 19 WPA WPA2
    Citycable-ea04:  Infra, 80:C6:AB:2C:DB:EE, Freq 2437 MHz, Rate 54 Mb/s, Strength 22 WPA WPA2
    cclj:            Infra, 00:26:24:3E:6C:AB, Freq 2437 MHz, Rate 54 Mb/s, Strength 24 WPA WPA2
    Citycable-bce8:  Infra, 28:BE:9B:34:2F:C0, Freq 2427 MHz, Rate 54 Mb/s, Strength 22 WPA WPA2
    Empire:          Infra, 34:08:04:D3:35:9C, Freq 2437 MHz, Rate 54 Mb/s, Strength 19 WPA WPA2
    island-3CEC50:   Infra, C0:8A:DE:FC:EC:5B, Freq 2437 MHz, Rate 54 Mb/s, Strength 22 WPA2
    ydsmrpc7tb:      Infra, A4:52:6F:77:F8:11, Freq 2437 MHz, Rate 54 Mb/s, Strength 22 WPA WPA2
    xne-73509:       Infra, 00:24:93:61:BC:60, Freq 2427 MHz, Rate 54 Mb/s, Strength 19 WPA WPA2
    HUG-PC_Network:  Infra, 00:26:F2:55:22:50, Freq 2437 MHz, Rate 54 Mb/s, Strength 20 WPA2
    Dimanche:        Infra, 00:23:A3:7B:62:10, Freq 2452 MHz, Rate 54 Mb/s, Strength 19 WPA WPA2
    Rodgeur:         Infra, 28:BE:9B:34:34:D5, Freq 2437 MHz, Rate 54 Mb/s, Strength 22 WPA WPA2
    Davide Buccieri's Network: Infra, 00:25:4B:0A:91:41, Freq 2412 MHz, Rate 54 Mb/s, Strength 20 WPA WPA2
    gourouHome:      Infra, 00:24:01:8F:69:36, Freq 2462 MHz, Rate 54 Mb/s, Strength 20 WPA2
    Citycable-ace:   Infra, 80:C6:AB:1A:78:C5, Freq 2462 MHz, Rate 54 Mb/s, Strength 19 WPA WPA2
    xyi-22385:       Infra, 00:24:C9:55:1C:60, Freq 2412 MHz, Rate 54 Mb/s, Strength 25 WPA WPA2

  IPv4 Settings:
    Address:         192.168.0.10
    Prefix:          24 (255.255.255.0)
    Gateway:         192.168.0.1

    DNS:             85.218.0.70
    DNS:             85.218.0.85


- Device: eth0  [Wired connection 1] -------------------------------------------
  Type:              Wired
  Driver:            e1000e
  State:             connected
  Default:           yes
  HW Address:        F0:DE:F1:36:3A:5E

  Capabilities:
    Carrier Detect:  yes
    Speed:           1000 Mb/s

  Wired Properties
    Carrier:         on

  IPv4 Settings:
    Address:         192.168.0.17
    Prefix:          24 (255.255.255.0)
    Gateway:         192.168.0.1

    DNS:             85.218.0.70
    DNS:             85.218.0.85



>>    sudo rfkill list 

0: hci0: Bluetooth
	Soft blocked: no
	Hard blocked: no
1: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no
2: tpacpi_bluetooth_sw: Bluetooth
	Soft blocked: no
	Hard blocked: no
3: tpacpi_wwan_sw: Wireless WAN
	Soft blocked: no
	Hard blocked: no

tail -f /var/log/syslog
me donne ces indications supplémentaires:

Dec  5 22:50:35 ben-ThinkPad-W510 NetworkManager[1224]: <info> Policy set 'choupettes' (wlan0) as default for IPv4 routing and DNS.
Dec  5 22:50:35 ben-ThinkPad-W510 NetworkManager[1224]: <info> Policy set 'choupettes' (wlan0) as default for IPv4 routing and DNS.
Dec  5 22:50:35 ben-ThinkPad-W510 dbus[1099]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper)
Dec  5 22:50:35 ben-ThinkPad-W510 dbus[1099]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Dec  5 22:50:41 ben-ThinkPad-W510 kernel: [ 7034.628424] iwlwifi 0000:03:00.0: Tx aggregation enabled on ra = 80:c6:ab:1a:5a:16 tid = 0
Dec  5 23:04:40 ben-ThinkPad-W510 acvpnagent[1302]: Function: tableCallbackHandler File: RouteMgr.cpp Line: 1723 Invoked Function: recv Return Code: 11 (0x0000000B) Description: unknown 
Dec  5 23:05:10 ben-ThinkPad-W510 acvpnagent[1302]: Function: tableCallbackHandler File: RouteMgr.cpp Line: 1723 Invoked Function: recv Return Code: 11 (0x0000000B) Description: unknown
]]> Wed, 05 Dec 2012 21:52:40 +0000 http://forum.ubuntu-fr.org/viewtopic.php?pid=11765001#p11765001