Bonsoir, après quelque temps de fonctionnement je viens de perdre la connexion wifi. Impossible de l'activer (alors que la réactivation était possible auparavant). Merci d'avance de votre aide
>> cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04.2 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 002: ID 2001:3314 D-Link Corp.
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 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
>> lspci -k -nn | grep -A 3 -i net
3f:00.0 Ethernet controller [0200]: Broadcom Corporation NetXtreme BCM5755 Gigabit Ethernet PCI Express [14e4:167b] (rev 02)
Subsystem: Hewlett-Packard Company NetXtreme BCM5755 Gigabit Ethernet PCI Express [103c:1308]
Kernel driver in use: tg3
Kernel modules: tg3
>> sudo lshw -C network
*-network
description: Ethernet interface
produit: NetXtreme BCM5755 Gigabit Ethernet PCI Express
fabriquant: Broadcom Corporation
identifiant matériel: 0
information bus: pci@0000:3f:00.0
nom logique: eth0
version: 02
numéro de série: 00:22:64:33:79:65
taille: 100Mbit/s
capacité: 1Gbit/s
bits: 64 bits
horloge: 33MHz
fonctionnalités: 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=3.137 duplex=full firmware=5755-v3.29 ip=192.168.1.118 latency=0 link=yes multicast=yes port=twisted pair speed=100Mbit/s
ressources: irq:31 mémoire:e3000000-e300ffff
*-network
description: Interface réseau sans fil
identifiant matériel: 1
information bus: usb@1:5
nom logique: wlan0
numéro de série: c0:a0:bb:65:0e:8d
fonctionnalités: ethernet physical wireless
configuration: broadcast=yes driver=rtl8812au multicast=yes wireless=unassociated
>> lsmod
Module Size Used by
cfg80211 499712 0
hp_wmi 16384 0
gpio_ich 16384 0
sparse_keymap 16384 1 hp_wmi
8812au 864256 0
snd_hda_codec_realtek 73728 1
snd_hda_codec_generic 69632 1 snd_hda_codec_realtek
snd_hda_intel 36864 3
snd_hda_codec 118784 3 snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_intel
snd_hda_core 61440 4 snd_hda_codec_realtek,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
snd_hwdep 16384 1 snd_hda_codec
snd_pcm 94208 3 snd_hda_codec,snd_hda_intel,snd_hda_core
snd_seq_midi 16384 0
coretemp 16384 0
snd_seq_midi_event 16384 1 snd_seq_midi
snd_rawmidi 28672 1 snd_seq_midi
snd_seq 57344 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
snd 69632 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
kvm 479232 0
irqbypass 16384 1 kvm
soundcore 16384 1 snd
8250_fintek 16384 0
binfmt_misc 20480 1
input_leds 16384 0
shpchp 32768 0
lpc_ich 20480 0
x38_edac 16384 0
serio_raw 16384 0
edac_core 49152 1 x38_edac
mac_hid 16384 0
parport_pc 32768 1
ppdev 20480 0
lp 20480 0
parport 45056 3 lp,ppdev,parport_pc
autofs4 40960 2
nouveau 1339392 3
mxm_wmi 16384 1 nouveau
video 36864 1 nouveau
i2c_algo_bit 16384 1 nouveau
ttm 90112 1 nouveau
drm_kms_helper 139264 1 nouveau
firewire_ohci 36864 0
psmouse 118784 0
ahci 36864 2
firewire_core 65536 1 firewire_ohci
syscopyarea 16384 1 drm_kms_helper
libahci 32768 1 ahci
sysfillrect 16384 1 drm_kms_helper
crc_itu_t 16384 1 firewire_core
tg3 159744 0
sysimgblt 16384 1 drm_kms_helper
pata_sil680 16384 0
fb_sys_fops 16384 1 drm_kms_helper
ptp 20480 1 tg3
drm 311296 6 ttm,drm_kms_helper,nouveau
pps_core 20480 1 ptp
wmi 20480 3 hp_wmi,mxm_wmi,nouveau
floppy 61440 0
fjes 28672 0
>> iwconfig
wlan0 unassociated Nickname:"<WIFI@REALTEK>"
Mode:Managed Frequency=2.412 GHz Access Point: Not-Associated
Sensitivity:0/0
Retry:off 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
>> ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:22:64:33:79:65
inet adr:192.168.1.118 Bcast:192.168.1.255 Masque:255.255.255.0
adr inet6: 2a02:120b:7fb:a070:499f:dfce:c2cb:480b/64 Scope:Global
adr inet6: 2a02:120b:7fb:a070:222:64ff:fe33:7965/64 Scope:Global
adr inet6: fe80::222:64ff:fe33:7965/64 Scope:Lien
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Packets reçus:570 erreurs:0 :0 overruns:0 frame:0
TX packets:660 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:232231 (232.2 KB) Octets transmis:85916 (85.9 KB)
Interruption:17
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:540 erreurs:0 :0 overruns:0 frame:0
TX packets:540 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1
Octets reçus:39683 (39.6 KB) Octets transmis:39683 (39.6 KB)
wlan0 Link encap:Ethernet HWaddr c0:a0:bb:65:0e:8d
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)
>> sudo iwlist scan
wlan0 Scan completed :
Cell 01 - Address: 88:41:FC:3C:B3:47
ESSID:""
Protocol:IEEE 802.11AC
Mode:Master
Frequency:5.18 GHz (Channel 36)
Encryption key:on
Bit Rates:867 Mb/s
Extra:rsn_ie=301a0100000fac040100000fac040100000fac0280000000000fac06
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD570050F204104A000110104400010210470010E2CEBA9C779D28DF16AA3D77D805404C103C0001021049000600372A00012010490022007FC510001835323038333931393230303630333532303030303030303130000101
Quality=0/100 Signal level=56/100
>> uname -r -m
4.4.0-62-generic i686
>> cat /etc/network/interfaces
auto lo
iface lo inet loopback
>> nm-tool
>> nmcli dev wifi
* SSID MODE CHAN DÉBIT SIGNAL BARS SÉCURITÉ
-- Infra 36 35 Mo/s 56 ▂▄▆_ WPA2
>> nmcli connection show
NOM UUID TYPE PÉRIPHÉRIQUE
Connexion filaire 1 0c015c7e-89cc-434c-bef3-1196a14226a7 802-3-ethernet eth0
DIRECT-85-HP OfficeJet 4650 a8fc2836-1d07-4301-902b-7dcdaf0c597d 802-11-wireless --
Hotspot 34e813da-b9c7-46a1-ae7a-00e18fc485d6 802-11-wireless --
QUI-92044 c78fa0fd-ab71-426b-8407-8e47f4c696ed 802-11-wireless --
UPC7A987F7 b9334f1b-2dc7-4720-bc83-608f9bd14e63 802-11-wireless --
zoi-32622 f0856f3c-781c-4f8c-a7cc-0e51f195c423 802-11-wireless --
>> sudo rfkill list