Bonjour,
le problème est résumé dans le titre.
Je pense que le problème vient du DNS étant donné que le ping test me donne :
192.168.1.1 : ok !
8.8.8.8 : ok !
google.com : inconnu !
Pour info j'utilise Wicd.
Voici un wificheck :
>> cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=17.04
DISTRIB_CODENAME=zesty
DISTRIB_DESCRIPTION="Ubuntu 17.04"
>> lsusb
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 007 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 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 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
>> lspci -k -nn | grep -A 3 -i net
04:00.0 Ethernet controller [0200]: Broadcom Limited NetLink BCM5906M Fast Ethernet PCI Express [14e4:1713] (rev 02)
Subsystem: COMPAL Electronics Inc NetLink BCM5906M Fast Ethernet PCI Express [14c0:0026]
Kernel driver in use: tg3
Kernel modules: tg3
0c:00.0 Network controller [0280]: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection [8086:4222] (rev 02)
Subsystem: Intel Corporation WM3945ABG MOW2 [8086:1001]
Kernel driver in use: iwl3945
Kernel modules: iwl3945
>> sudo lshw -C network
*-network
description: Ethernet interface
produit: NetLink BCM5906M Fast Ethernet PCI Express
fabriquant: Broadcom Limited
identifiant matériel: 0
information bus: pci@0000:04:00.0
nom logique: enp4s0
version: 02
numéro de série: 00:16:d4:de:d4:29
capacité: 100Mbit/s
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm vpd msi pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=tg3 driverversion=3.137 firmware=sb v3.04 latency=0 link=no multicast=yes port=twisted pair
ressources: irq:34 mémoire:f4000000-f400ffff
*-network
description: Interface réseau sans fil
produit: PRO/Wireless 3945ABG [Golan] Network Connection
fabriquant: Intel Corporation
identifiant matériel: 0
information bus: pci@0000:0c:00.0
nom logique: wlp12s0
version: 02
numéro de série: 00:19:d2:bb:4e:48
bits: 32 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwl3945 driverversion=4.10.0-37-generic firmware=15.32.2.9 ip=192.168.1.202 latency=0 link=yes multicast=yes wireless=IEEE 802.11
ressources: irq:32 mémoire:f8200000-f8200fff
>> lsmod
Module Size Used by
ccm 20480 1
btusb 45056 0
btrtl 16384 1 btusb
btbcm 16384 1 btusb
btintel 16384 1 btusb
bluetooth 557056 5 btrtl,btintel,btbcm,btusb
appletalk 36864 0
ipx 28672 0
p8023 16384 1 ipx
psnap 16384 2 appletalk,ipx
p8022 16384 1 ipx
llc 16384 2 p8022,psnap
snd_hda_codec_si3054 16384 1
snd_hda_codec_realtek 90112 1
snd_hda_codec_generic 73728 1 snd_hda_codec_realtek
snd_hda_intel 36864 3
coretemp 16384 0
snd_hda_codec 126976 4 snd_hda_intel,snd_hda_codec_generic,snd_hda_codec_si3054,snd_hda_codec_realtek
snd_hda_core 81920 5 snd_hda_intel,snd_hda_codec,snd_hda_codec_generic,snd_hda_codec_si3054,snd_hda_codec_realtek
snd_hwdep 16384 1 snd_hda_codec
kvm_intel 200704 0
snd_pcm 102400 4 snd_hda_intel,snd_hda_codec,snd_hda_core,snd_hda_codec_si3054
kvm 593920 1 kvm_intel
irqbypass 16384 1 kvm
snd_seq_midi 16384 0
snd_seq_midi_event 16384 1 snd_seq_midi
arc4 16384 2
snd_rawmidi 32768 1 snd_seq_midi
r592 20480 0
memstick 16384 1 r592
iwl3945 69632 0
joydev 20480 0
input_leds 16384 0
iwlegacy 98304 1 iwl3945
serio_raw 16384 0
mac80211 782336 2 iwlegacy,iwl3945
cfg80211 602112 3 mac80211,iwlegacy,iwl3945
snd_seq 65536 2 snd_seq_midi_event,snd_seq_midi
lpc_ich 24576 0
snd_seq_device 16384 3 snd_seq,snd_rawmidi,snd_seq_midi
snd_timer 32768 2 snd_seq,snd_pcm
ir_rc6_decoder 16384 0
ir_lirc_codec 16384 0
lirc_dev 20480 1 ir_lirc_codec
snd 77824 17 snd_hda_intel,snd_hwdep,snd_seq,snd_hda_codec,snd_timer,snd_rawmidi,snd_hda_codec_generic,snd_seq_device,snd_hda_codec_si3054,snd_hda_codec_realtek,snd_pcm
rc_rc6_mce 16384 0
ene_ir 20480 0
rc_core 28672 6 ir_rc6_decoder,rc_rc6_mce,ir_lirc_codec,lirc_dev,ene_ir
soundcore 16384 1 snd
shpchp 36864 0
mac_hid 16384 0
parport_pc 32768 0
ppdev 20480 0
lp 20480 0
parport 49152 3 lp,parport_pc,ppdev
ip_tables 24576 0
x_tables 36864 1 ip_tables
autofs4 40960 2
i915 1449984 3
i2c_algo_bit 16384 1 i915
firewire_ohci 40960 0
psmouse 139264 0
sdhci_pci 28672 0
firewire_core 65536 1 firewire_ohci
ahci 36864 3
sdhci 45056 1 sdhci_pci
libahci 32768 1 ahci
crc_itu_t 16384 1 firewire_core
pata_acpi 16384 0
drm_kms_helper 151552 1 i915
tg3 163840 0
syscopyarea 16384 1 drm_kms_helper
ptp 20480 1 tg3
sysfillrect 16384 1 drm_kms_helper
pps_core 20480 1 ptp
sysimgblt 16384 1 drm_kms_helper
fb_sys_fops 16384 1 drm_kms_helper
drm 352256 5 i915,drm_kms_helper
wmi 16384 0
fjes 73728 0
video 40960 1 i915
>> iwconfig
wlp12s0 IEEE 802.11 ESSID:"Livebox-2658_EXT"
Mode:Managed Frequency:2.462 GHz Access Point: A0:63:91:B0:A3:5C
Bit Rate=36 Mb/s Tx-Power=15 dBm
Retry short limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=38/70 Signal level=-72 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:51 Missed beacon:0
>> ifconfig -a
enp4s0: flags=4099<UP,BROADCAST,MULTICAST> mtu 1500
ether 00:16:d4:de:d4:29 txqueuelen 1000 (Ethernet)
RX packets 0 bytes 0 (0.0 B)
RX errors 0 dropped 22 overruns 0 frame 0
TX packets 0 bytes 0 (0.0 B)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
device interrupt 17
lo: flags=73<UP,LOOPBACK,RUNNING> mtu 65536
inet 127.0.0.1 netmask 255.0.0.0
inet6 ::1 prefixlen 128 scopeid 0x10<host>
loop txqueuelen 1000 (Boucle locale)
RX packets 345 bytes 25501 (25.5 KB)
RX errors 0 dropped 0 overruns 0 frame 0
TX packets 345 bytes 25501 (25.5 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
wlp12s0: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500
inet 192.168.1.202 netmask 255.255.255.0 broadcast 192.168.1.255
inet6 2a01:cb14:82df:100:78a9:10fd:7c3:73bd prefixlen 64 scopeid 0x0<global>
inet6 2a01:cb14:82df:100:219:d2ff:febb:4e48 prefixlen 64 scopeid 0x0<global>
inet6 fe80::219:d2ff:febb:4e48 prefixlen 64 scopeid 0x20<link>
ether 00:19:d2:bb:4e:48 txqueuelen 1000 (Ethernet)
RX packets 27 bytes 3651 (3.6 KB)
RX errors 0 dropped 1 overruns 0 frame 0
TX packets 79 bytes 12763 (12.7 KB)
TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0
>> sudo iwlist scan
wlp12s0 Scan completed :
Cell 01 - Address: C0:FF:D4:C6:52:E1
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=23/70 Signal level=-87 dBm
Encryption key:on
ESSID:"Second"
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=00000264ee860a7e
Extra: Last beacon: 12ms ago
IE: Unknown: 00065365636F6E64
IE: Unknown: 010882848B960C121824
IE: Unknown: 030101
IE: Unknown: 0706444520010D14
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: 2D1AEF1103FFFF0000000000000000000000000000000406E6E70D00
IE: Unknown: 331AEF1103FFFF0000000000000000000000000000000406E6E70D00
IE: Unknown: 3D16010D0400000000000000000000000000000000000000
IE: Unknown: 3416010D0400000000000000000000000000000000000000
IE: Unknown: 4A0E14000A002C01C800140005001900
IE: Unknown: 7F0101
IE: Unknown: DD180050F2020101820003A4000027A4000042435E0062322F00
IE: Unknown: DD0900037F01010000FF7F
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD9D0050F204104A0001101044000102103B000103104700101043B85CFE1C59A9A49A5611C5D03D0F1021000D4E4554474541522C20496E632E1023001458574E3530303128576972656C657373204150291024000758574E353030311042000531323334351054000800060050F20400011011001458574E3530303128576972656C6573732041502910080002200C103C0001011049000600372A000120
Cell 02 - Address: B8:26:6C:CF:26:58
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=70/70 Signal level=-29 dBm
Encryption key:on
ESSID:"Livebox-2658"
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=0000003b76b18d07
Extra: Last beacon: 12ms ago
IE: Unknown: 000C4C697665626F782D32363538
IE: Unknown: 010882848B960C121824
IE: Unknown: 03010B
IE: Unknown: 0706465220010D14
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: 2D1AAD011BFFFF0000000000000000000000000000000406E4A70C00
IE: Unknown: 331AAD011BFFFF0000000000000000000000000000000406E4A70C00
IE: Unknown: 3D160B000500000000000000000000000000000000000000
IE: Unknown: 34160B000500000000000000000000000000000000000000
IE: Unknown: DD180050F2020101890003A4000027A4000042435E0062322F00
IE: Unknown: DD0900037F01010000FF7F
IE: Unknown: DD8F0050F204104A0001101044000102103B00010310470010493F393D3D4AFA4DF93D3C3F493F393D10210008536167656D636F6D10230016536167656D636F6D46617374333936355F4C42322E381024000C53475F4C42335F312E322E3110420009414E313630313146461054000800060050F204000110110000100800020006103C0001011049000600372A000120
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
Cell 03 - Address: CA:26:6C:CF:26:58
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=70/70 Signal level=-29 dBm
Encryption key:off
ESSID:"orange"
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=3200003b76b19cda
Extra: Last beacon: 12ms ago
IE: Unknown: 00066F72616E6765
IE: Unknown: 010882848B960C121824
IE: Unknown: 03010B
IE: Unknown: 0706465220010D14
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: 2D1AAD011BFFFF0000000000000000000000000000000406E4A70C00
IE: Unknown: 331AAD011BFFFF0000000000000000000000000000000406E4A70C00
IE: Unknown: 3D160B000500000000000000000000000000000000000000
IE: Unknown: 34160B000500000000000000000000000000000000000000
IE: Unknown: DD180050F2020101890003A4000027A4000042435E0062322F00
IE: Unknown: DD0900037F01010000FF7F
Cell 04 - Address: A0:63:91:B0:A3:5C
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=30/70 Signal level=-80 dBm
Encryption key:on
ESSID:"Livebox-2658_EXT"
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=0000003b7639ff88
Extra: Last beacon: 4ms ago
IE: Unknown: 00104C697665626F782D323635385F455854
IE: Unknown: 010882848B961224486C
IE: Unknown: 03010B
IE: Unknown: 2A0100
IE: Unknown: 32040C183060
IE: Unknown: 2D1AEC0117FFFF000000000000000000000000000000000000000000
IE: Unknown: 3D160B000700000000000000000000000000000000000000
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
IE: Unknown: 0B05020015127A
IE: Unknown: 7F0101
IE: Unknown: DD07000C4303000000
IE: Unknown: 0706444520010D10
IE: Unknown: DD8D0050F204104A0001101044000102103B000103104700102880288028801880A880A06391B0A35C102100044E54475210230008574E3330303052501024000256331042000C6130363339316230613335631054000800060050F204000110110017574E333030305250763328576972656C6573732041502910080002210C103C0001011049000600372A000120
Cell 05 - Address: B8:26:6C:CF:26:59
Channel:112
Frequency:5.56 GHz (Channel 112)
Quality=70/70 Signal level=-30 dBm
Encryption key:on
ESSID:"Livebox-2658"
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=0000003b7317803b
Extra: Last beacon: 2520ms ago
IE: Unknown: 000C4C697665626F782D32363538
IE: Unknown: 01088C129824B048606C
IE: Unknown: 030170
IE: Unknown: 050402030000
IE: Unknown: 07344652202401172801172C01173001173401173801173C01174001176401176801176C01177001177401178401178801178C011700
IE: Unknown: 200100
IE: Unknown: 2D1AEF011BFFFFFF00000000000000000000000000000406E4470D00
IE: Unknown: 3D16700F0000000000000000000000000000000000000000
IE: Unknown: DD180050F2020101820003A4000027A4000042435E0062322F00
IE: Unknown: DD0900037F01010000FF7F
IE: Unknown: DD1D0050F204104A0001101044000102103C0001021049000600372A000120
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
Cell 06 - Address: 5C:33:8E:EE:06:8C
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=19/70 Signal level=-91 dBm
Encryption key:on
ESSID:"Livebox-7920"
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=00000264e2188180
Extra: Last beacon: 9924ms ago
IE: Unknown: 000C4C697665626F782D37393230
IE: Unknown: 010882848B960C121824
IE: Unknown: 03010B
IE: Unknown: 050402030000
IE: Unknown: 2A0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: 32043048606C
IE: Unknown: DD180050F2020101830003A4000027A4000042435E0062322F00
IE: Unknown: 2D1A0C101BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D160B080800000000000000000000000000000000000000
IE: Unknown: DD0900037F01010000FF7F
IE: Unknown: DD0A00037F04010000000000
IE: Unknown: 0706465220010D14
IE: Unknown: DD210050F204104A00011010440001021011000F4C697665626F782046545448207632
>> uname -r -m
4.10.0-37-generic x86_64
>> cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
>> nm-tool
>> nmcli dev wifi
>> nmcli connection show
>> sudo rfkill list
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
1: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
Merci de votre aide 🙂
PS : je me connecte actuellement en filaire, la connexion fonctionne bien !
