Merci pour la réponse, voici le contenu du fichier log :
>> cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04.5 LTS"
>> lsusb
Bus 002 Device 002: ID 8087:8001 Intel Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8009 Intel Corp.
Bus 001 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 003 Device 002: ID 1038:1200 SteelSeries ApS
Bus 003 Device 007: ID 1038:1217 SteelSeries ApS
Bus 003 Device 006: ID 1038:1212 SteelSeries ApS
Bus 003 Device 005: ID 0451:2036 Texas Instruments, Inc. TUSB2036 Hub
Bus 003 Device 008: ID 2357:010c
Bus 003 Device 003: ID 04d9:fa56 Holtek Semiconductor, Inc.
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>> lspci -k -nn | grep -A 3 -i net
00:19.0 Ethernet controller [0200]: Intel Corporation Ethernet Connection (2) I218-V [8086:15a1]
DeviceName: Onboard LAN
Subsystem: ASUSTeK Computer Inc. Ethernet Connection (2) I218-V [1043:85c4]
Kernel driver in use: e1000e
Kernel modules: e1000e
00:1a.0 USB controller [0c03]: Intel Corporation 9 Series Chipset Family USB EHCI Controller #2 [8086:8cad]
>> sudo lshw -C network
*-network
description: Ethernet interface
product: Ethernet Connection (2) I218-V
vendor: Intel Corporation
physical id: 19
bus info: pci@0000:00:19.0
logical name: eno1
version: 00
serial: ac:9e:17:83:4b:63
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=3.2.6-k duplex=full firmware=0.1-4 ip=192.168.0.44 latency=0 link=yes multicast=yes port=twisted pair speed=1Gbit/s
resources: irq:26 memory:df100000-df11ffff memory:df138000-df138fff ioport:f040(size=32)
*-network
description: Wireless interface
physical id: 2
bus info: usb@3:12
logical name: wlxc025e91bcc07
serial: c0:25:e9:1b:cc:07
capabilities: ethernet physical wireless
configuration: broadcast=yes driver=r8188eu ip=192.168.0.10 multicast=yes wireless=IEEE 802.11bgn
>> lsmod
Module Size Used by
8188eu 1056768 0
r8188eu 425984 0
cfg80211 622592 2 r8188eu,8188eu
snd_usb_audio 196608 2
snd_usbmidi_lib 32768 1 snd_usb_audio
snd_hda_codec_hdmi 49152 1
nls_iso8859_1 16384 1
intel_rapl 20480 0
x86_pkg_temp_thermal 16384 0
intel_powerclamp 16384 0
coretemp 16384 0
kvm_intel 212992 0
kvm 598016 1 kvm_intel
irqbypass 16384 1 kvm
crct10dif_pclmul 16384 0
crc32_pclmul 16384 0
ghash_clmulni_intel 16384 0
pcbc 16384 0
aesni_intel 188416 0
aes_x86_64 20480 1 aesni_intel
crypto_simd 16384 1 aesni_intel
glue_helper 16384 1 aesni_intel
cryptd 24576 3 crypto_simd,ghash_clmulni_intel,aesni_intel
snd_hda_codec_realtek 106496 1
snd_hda_codec_generic 73728 1 snd_hda_codec_realtek
input_leds 16384 0
joydev 24576 0
snd_hda_intel 40960 5
snd_hda_codec 126976 4 snd_hda_intel,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec_realtek
snd_hda_core 81920 5 snd_hda_intel,snd_hda_codec,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec_realtek
snd_hwdep 20480 2 snd_hda_codec,snd_usb_audio
snd_pcm 98304 5 snd_hda_intel,snd_hda_codec,snd_usb_audio,snd_hda_core,snd_hda_codec_hdmi
intel_cstate 20480 0
snd_seq_midi 16384 0
snd_seq_midi_event 16384 1 snd_seq_midi
snd_rawmidi 32768 2 snd_seq_midi,snd_usbmidi_lib
snd_seq 65536 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_seq,snd_pcm
intel_rapl_perf 16384 0
snd 81920 27 snd_hda_intel,snd_hwdep,snd_seq,snd_hda_codec,snd_usb_audio,snd_timer,snd_rawmidi,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_usbmidi_lib,snd_seq_device,snd_hda_codec_realtek,snd_pcm
mei_me 40960 0
eeepc_wmi 16384 0
asus_wmi 28672 1 eeepc_wmi
sparse_keymap 16384 1 asus_wmi
wmi_bmof 16384 0
lpc_ich 24576 0
soundcore 16384 1 snd
mei 90112 1 mei_me
shpchp 36864 0
mac_hid 16384 0
acpi_pad 180224 0
parport_pc 36864 0
ppdev 20480 0
lp 20480 0
parport 49152 3 lp,parport_pc,ppdev
autofs4 40960 2
hid_generic 16384 0
usbhid 49152 0
hid 118784 2 hid_generic,usbhid
nouveau 1724416 6
i2c_algo_bit 16384 1 nouveau
ttm 106496 1 nouveau
mxm_wmi 16384 1 nouveau
drm_kms_helper 172032 1 nouveau
syscopyarea 16384 1 drm_kms_helper
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
fb_sys_fops 16384 1 drm_kms_helper
e1000e 249856 0
ahci 36864 3
drm 401408 9 nouveau,ttm,drm_kms_helper
libahci 32768 1 ahci
ptp 20480 1 e1000e
pps_core 20480 1 ptp
video 45056 2 asus_wmi,nouveau
wmi 24576 4 asus_wmi,wmi_bmof,mxm_wmi,nouveau
>> iwconfig
wlxc025e91bcc07 IEEE 802.11bgn ESSID:"freebox_SIMONE" Nickname:"<WIFI@REALTEK>"
Mode:Managed Frequency:2.462 GHz Access Point: F4:CA:E5:D7:88:B8
Bit Rate:72.2 Mb/s Sensitivity:0/0
Retry:off RTS thr:off Fragment thr:off
Power Management:off
Link Quality=100/100 Signal level=99/100 Noise level=0/100
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0
>> ifconfig -a
eno1 Link encap:Ethernet HWaddr ac:9e:17:83:4b:63
inet addr:192.168.0.44 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::d4be:f65:e814:20ff/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:3127 errors:0 dropped:0 overruns:0 frame:0
TX packets:2747 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:2015110 (2.0 MB) TX bytes:364477 (364.4 KB)
Interrupt:20 Memory:df100000-df120000
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:65536 Metric:1
RX packets:640 errors:0 dropped:0 overruns:0 frame:0
TX packets:640 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:62414 (62.4 KB) TX bytes:62414 (62.4 KB)
wlxc025e91bcc07 Link encap:Ethernet HWaddr c0:25:e9:1b:cc:07
inet addr:192.168.0.10 Bcast:192.168.0.255 Mask:255.255.255.0
inet6 addr: fe80::d4e2:2729:383e:2afc/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:51 errors:0 dropped:38 overruns:0 frame:0
TX packets:42 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:12082 (12.0 KB) TX bytes:7507 (7.5 KB)
>> sudo iwlist scan
wlxc025e91bcc07 Scan completed :
Cell 01 - Address: 24:7F:20:D3:4D:D8
ESSID:"Livebox-4DD8"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.412 GHz (Channel 1)
Encryption key:on
Bit Rates:144 Mb/s
Extra:wpa_ie=dd1a0050f20101000050f20202000050f2040050f20201000050f202
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
Extra:rsn_ie=30180100000fac020200000fac04000fac020100000fac020c00
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD1D0050F204104A0001101044000102103C0001011049000600372A000120
Quality=0/100 Signal level=48/100
Cell 02 - Address: 9A:26:6C:CC:C9:7E
ESSID:"orange"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.412 GHz (Channel 1)
Encryption key:off
Bit Rates:144 Mb/s
Quality=0/100 Signal level=46/100
Cell 03 - Address: F4:CA:E5:E5:C0:E5
ESSID:"FreeWifi"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.437 GHz (Channel 6)
Encryption key:off
Bit Rates:144 Mb/s
Quality=0/100 Signal level=50/100
Cell 04 - Address: 6E:81:A0:6F:0E:4E
ESSID:""
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.452 GHz (Channel 9)
Encryption key:on
Bit Rates:300 Mb/s
Extra:rsn_ie=30140100000fac040100000fac040100000fac020000
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Quality=0/100 Signal level=58/100
Cell 05 - Address: 00:17:33:D7:C8:FC
ESSID:"NEUF_C8F8"
Protocol:IEEE 802.11bg
Mode:Master
Frequency:2.437 GHz (Channel 6)
Encryption key:on
Bit Rates:54 Mb/s
Extra:wpa_ie=dd1c0050f20101000050f20202000050f2040050f20201000050f2020c00
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
Quality=0/100 Signal level=48/100
Cell 06 - Address: 6E:81:A0:6F:0E:4C
ESSID:"FREEBOX_SIMONE_KJ"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.452 GHz (Channel 9)
Encryption key:on
Bit Rates:300 Mb/s
Extra:wpa_ie=dd1a0050f20101000050f20202000050f2020050f20401000050f202
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
Quality=0/100 Signal level=57/100
Cell 07 - Address: F4:CA:E5:D7:88:B8
ESSID:"freebox_SIMONE"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.462 GHz (Channel 11)
Encryption key:on
Bit Rates:144 Mb/s
Extra:wpa_ie=dd1a0050f20101000050f20202000050f2040050f20201000050f202
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
Quality=100/100 Signal level=99/100
Cell 08 - Address: F4:CA:E5:AB:35:16
ESSID:"FreeWifi_secure"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.467 GHz (Channel 12)
Encryption key:on
Bit Rates:144 Mb/s
Extra:rsn_ie=30180100000fac020200000fac04000fac020100000fac010c00
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : 802.1x
Quality=0/100 Signal level=48/100
Cell 09 - Address: F4:CA:E5:D7:88:BA
ESSID:"FreeWifi_secure"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.462 GHz (Channel 11)
Encryption key:on
Bit Rates:144 Mb/s
Extra:rsn_ie=30180100000fac020200000fac04000fac020100000fac010c00
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : 802.1x
Quality=0/100 Signal level=94/100
Cell 10 - Address: F4:CA:E5:D7:88:B9
ESSID:"FreeWifi"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.462 GHz (Channel 11)
Encryption key:off
Bit Rates:144 Mb/s
Quality=0/100 Signal level=96/100
Cell 11 - Address: F4:CA:E5:AB:35:14
ESSID:"FREEBOX_VERONIQUE_3Q"
Protocol:IEEE 802.11bg
Mode:Master
Frequency:2.467 GHz (Channel 12)
Encryption key:on
Bit Rates:54 Mb/s
Quality=0/100 Signal level=52/100
Cell 12 - Address: F4:CA:E5:AB:35:15
ESSID:"FreeWifi"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.467 GHz (Channel 12)
Encryption key:off
Bit Rates:144 Mb/s
Quality=0/100 Signal level=50/100
Cell 13 - Address: 68:A3:78:5F:CD:C6
ESSID:"FreeWifi"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.472 GHz (Channel 13)
Encryption key:off
Bit Rates:144 Mb/s
Quality=0/100 Signal level=43/100
Cell 14 - Address: 68:A3:78:5F:CD:C7
ESSID:"FreeWifi_secure"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.472 GHz (Channel 13)
Encryption key:on
Bit Rates:144 Mb/s
Extra:rsn_ie=30180100000fac020200000fac04000fac020100000fac010c00
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : 802.1x
Quality=0/100 Signal level=43/100
Cell 15 - Address: 16:7F:20:D3:4D:D8
ESSID:"orange"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.412 GHz (Channel 1)
Encryption key:off
Bit Rates:144 Mb/s
Quality=0/100 Signal level=47/100
Cell 16 - Address: F4:CA:E5:E5:C0:E4
ESSID:"norbichon"
Protocol:IEEE 802.11bgn
Mode:Master
Frequency:2.437 GHz (Channel 6)
Encryption key:on
Bit Rates:144 Mb/s
Extra:wpa_ie=dd1a0050f20101000050f20202000050f2040050f20201000050f202
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
Quality=0/100 Signal level=58/100
>> uname -r -m
4.15.0-36-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 RATE SIGNAL BARS SECURITY
* freebox_SIMONE Infra 11 16 Mbit/s 99 ▂▄▆█ WPA1
FreeWifi Infra 11 16 Mbit/s 96 ▂▄▆█ --
FreeWifi_secure Infra 11 16 Mbit/s 94 ▂▄▆█ WPA2 802.1X
norbichon Infra 6 16 Mbit/s 58 ▂▄▆_ WPA1
-- Infra 9 44 Mbit/s 58 ▂▄▆_ WPA2
FREEBOX_SIMONE_KJ Infra 9 44 Mbit/s 57 ▂▄▆_ WPA1
FREEBOX_VERONIQUE_3Q Infra 12 54 Mbit/s 52 ▂▄__ WEP
FreeWifi Infra 6 16 Mbit/s 50 ▂▄__ --
FreeWifi Infra 12 16 Mbit/s 50 ▂▄__ --
Livebox-4DD8 Infra 1 16 Mbit/s 48 ▂▄__ WPA1 WPA2
NEUF_C8F8 Infra 6 54 Mbit/s 48 ▂▄__ WPA1
FreeWifi_secure Infra 12 16 Mbit/s 48 ▂▄__ WPA2 802.1X
orange Infra 1 16 Mbit/s 47 ▂▄__ --
orange Infra 1 16 Mbit/s 46 ▂▄__ --
FreeWifi Infra 13 16 Mbit/s 43 ▂▄__ --
FreeWifi_secure Infra 13 16 Mbit/s 43 ▂▄__ WPA2 802.1X
>> nmcli connection list (< 15.04) ou nmcli connection show (>= 15.04)
NAME UUID TYPE DEVICE
Wired connection 1 8a308008-3db9-3613-96ec-3a7a758007b3 802-3-ethernet eno1
freebox_SIMONE b6944bc4-53c9-4ef3-b0c8-de9a29a8a33a 802-11-wireless wlxc025e91bcc07
>> nmcli connection status
>> sudo rfkill list