Merci de ta réponse rapide,
Voici ce que donne le fichier wificheck.log:
>> cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04.1 LTS"
>> lsusb
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 008 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 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 003: ID 0bda:8178 Realtek Semiconductor Corp. RTL8192CU 802.11n WLAN Adapter
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 003 Device 002: ID 1a81:1006 Holtek Semiconductor, Inc.
Bus 003 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>> lspci -k -nn | grep -A 3 -i net
00:19.0 Ethernet controller [0200]: Intel Corporation 82567LM-3 Gigabit Network Connection [8086:10de] (rev 02)
Subsystem: Hewlett-Packard Company 82567LM-3 Gigabit Network Connection [103c:3647]
Kernel driver in use: e1000e
Kernel modules: e1000e
00:1a.0 USB controller [0c03]: Intel Corporation 82801JD/DO (ICH10 Family) USB UHCI Controller #4 [8086:3a67] (rev 02)
>> sudo lshw -C network
*-network
description: Ethernet interface
produit: 82567LM-3 Gigabit Network Connection
fabriquant: Intel Corporation
identifiant matériel: 19
information bus: pci@0000:00:19.0
nom logique: eth0
version: 02
numéro de série: d4:85:64:03:43:1e
capacité: 1Gbit/s
bits: 32 bits
horloge: 33MHz
fonctionnalités: 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=3.2.6-k firmware=0.5-3 latency=0 link=no multicast=yes port=twisted pair
ressources: irq:30 mémoire:f0500000-f051ffff mémoire:f0525000-f0525fff portE/S:1100(taille=32)
*-network
description: Interface réseau sans fil
identifiant matériel: 2
information bus: usb@1:4
nom logique: wlan0
numéro de série: e8:94:f6:18:c4:aa
fonctionnalités: ethernet physical wireless
configuration: broadcast=yes driver=rtl8192cu driverversion=4.4.0-53-generic firmware=N/A ip=192.168.1.13 link=yes multicast=yes wireless=IEEE 802.11bgn
>> lsmod
Module Size Used by
drbg 32768 1
ansi_cprng 16384 0
ctr 16384 2
ccm 20480 2
rtl8xxxu 73728 0
arc4 16384 2
rtl8192cu 69632 0
rtl_usb 20480 1 rtl8192cu
rtl8192c_common 53248 1 rtl8192cu
rtlwifi 77824 3 rtl_usb,rtl8192c_common,rtl8192cu
mac80211 737280 4 rtl8xxxu,rtl_usb,rtlwifi,rtl8192cu
cfg80211 565248 2 mac80211,rtlwifi
gpio_ich 16384 0
hp_wmi 16384 0
sparse_keymap 16384 1 hp_wmi
joydev 20480 0
input_leds 16384 0
coretemp 16384 0
kvm 540672 0
irqbypass 16384 1 kvm
serio_raw 16384 0
snd_hda_codec_realtek 86016 1
snd_hda_codec_generic 77824 1 snd_hda_codec_realtek
snd_hda_intel 40960 3
snd_hda_codec 135168 3 snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_intel
snd_hda_core 73728 4 snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
snd_hwdep 16384 1 snd_hda_codec
lpc_ich 24576 0
snd_pcm 106496 3 snd_hda_codec,snd_hda_intel,snd_hda_core
snd_seq_midi 16384 0
snd_seq_midi_event 16384 1 snd_seq_midi
snd_rawmidi 32768 1 snd_seq_midi
snd_seq 69632 2 snd_seq_midi_event,snd_seq_midi
snd_seq_device 16384 3 snd_seq,snd_rawmidi,snd_seq_midi
snd_timer 32768 2 snd_pcm,snd_seq
shpchp 36864 0
8250_fintek 16384 0
snd 81920 16 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,snd_seq_device
soundcore 16384 1 snd
mei_me 36864 0
mei 98304 1 mei_me
tpm_infineon 20480 0
mac_hid 16384 0
parport_pc 32768 0
ppdev 20480 0
lp 20480 0
parport 49152 3 lp,ppdev,parport_pc
autofs4 40960 2
hid_generic 16384 0
usbhid 49152 0
hid 118784 2 hid_generic,usbhid
i915 1208320 4
psmouse 131072 0
ahci 36864 3
libahci 32768 1 ahci
i2c_algo_bit 16384 1 i915
e1000e 237568 0
drm_kms_helper 155648 1 i915
syscopyarea 16384 1 drm_kms_helper
ptp 20480 1 e1000e
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 364544 6 i915,drm_kms_helper
video 40960 1 i915
fjes 28672 0
wmi 20480 1 hp_wmi
>> iwconfig
wlan0 IEEE 802.11bgn ESSID:"Livebox-2440"
Mode:Managed Frequency:2.412 GHz Access Point: 90:4D:4A:F2:24:40
Bit Rate=72.2 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Power Management:off
Link Quality=48/70 Signal level=-62 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:4 Missed beacon:0
>> ifconfig -a
eth0 Link encap:Ethernet HWaddr d4:85:64:03:43:1e
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)
Interruption:19 Mémoire:f0500000-f0520000
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:65536 Metric:1
Packets reçus:31449 erreurs:0 :0 overruns:0 frame:0
TX packets:31449 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1
Octets reçus:2493977 (2.4 MB) Octets transmis:2493977 (2.4 MB)
wlan0 Link encap:Ethernet HWaddr e8:94:f6:18:c4:aa
inet adr:192.168.1.13 Bcast:192.168.1.255 Masque:255.255.255.0
adr inet6: fe80::ea94:f6ff:fe18:c4aa/64 Scope:Lien
adr inet6: 2a01:cb08:83a5:4c00:ea94:f6ff:fe18:c4aa/64 Scope:Global
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Packets reçus:2229973 erreurs:0 :2 overruns:0 frame:0
TX packets:1767401 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:3244556100 (3.2 GB) Octets transmis:147266831 (147.2 MB)
>> sudo iwlist scan
wlan0 Scan completed :
Cell 01 - Address: 90:4D:4A:F2:24:40
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=48/70 Signal level=-62 dBm
Encryption key:on
ESSID:"Livebox-2440"
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=000001cf4dcffb4a
Extra: Last beacon: 56ms ago
IE: Unknown: 000C4C697665626F782D32343430
IE: Unknown: 010882848B962430486C
IE: Unknown: 030101
IE: Unknown: 0706465220010D7F
IE: Unknown: 200100
IE: Unknown: 23021200
IE: Unknown: 2A0104
IE: Unknown: 32040C121860
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 0B0506003D0000
IE: Unknown: 2D1AAD0117FFFFFF0000000000000080017800000000000000000000
IE: Unknown: 3D1601080400000000000000000000000000000000000000
IE: Unknown: 7F080400000000000040
IE: Unknown: DD970050F204104A0001101044000102103B00010310470010393034443441F632F23434303930344410210008536167656D636F6D10230015536167656D636F6D46617374353336305F4D4942341024000C53475F4C42345F312E312E30104200094C4B313631393946461054000800060050F2040001101100094C697665626F782034100800020006103C0001011049000600372A000120
IE: Unknown: DD090010180206101C0000
IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
Cell 02 - Address: 90:4D:4A:F2:24:41
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=50/70 Signal level=-60 dBm
Encryption key:off
ESSID:"orange"
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=000001cf4dd00925
Extra: Last beacon: 56ms ago
IE: Unknown: 00066F72616E6765
IE: Unknown: 010882848B962430486C
IE: Unknown: 030101
IE: Unknown: 0706465220010D7F
IE: Unknown: 200100
IE: Unknown: 23021200
IE: Unknown: 2A0104
IE: Unknown: 32040C121860
IE: Unknown: 0B0500003D0000
IE: Unknown: 2D1AAD0117FFFFFF0000000000000080017800000000000000000000
IE: Unknown: 3D1601080400000000000000000000000000000000000000
IE: Unknown: 7F080400000000000040
IE: Unknown: DD090010180200101C0000
IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00
>> uname -r -m
4.4.0-53-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
* SSID MODE CHAN DÉBIT SIGNAL BARS SÉCURITÉ
orange Infra 1 54 Mo/s 54 ▂▄__ --
* Livebox-2440 Infra 1 54 Mo/s 54 ▂▄__ WPA2
>> nmcli connection show
NOM UUID TYPE PÉRIPHÉRIQUE
Livebox-2440 3faabcca-50f0-4291-be76-240d1c50011b 802-11-wireless wlan0
Connexion filaire 1 a4400082-b670-3368-b538-8e4f04cd3647 802-3-ethernet --
GoproKevin 78af02c8-4a31-4638-a865-ccea436232b5 802-11-wireless --
Livebox-8B3A 9c24adad-7025-435a-9243-742622ceadaa 802-11-wireless --
orange a27f5651-a2ba-4ea5-9ecc-aa9814afa6d4 802-11-wireless --
>> sudo rfkill list
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
