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#1 Le 20/03/2019, à 19:34

Greenouille

[Résolu] Connexion wifi ou ethernet impossible

Bonjour,

Je me tourne vers la communauté Ubuntu car du jour au lendemain je me retrouve sans accès internet.
J'utilise donc Ubuntu 16.04 LTS et ma connexion wifi fonctionnait parfaitement jusqu'à hier, où d'un coup je me retrouve incapable de connecter mon ordinateur que ce soit à ma livebox, au hotspot de mon téléphone ou à une connexion filaire (même en tapant sudo dhclient, le symbole de connexion change mais je n'ai toujours pas accès à internet). Je pense que j'ai dû lancer des mises à jour avant-hier ce qui expliquerait ce changement soudain.
Quoiqu'il en soit je m'en remets à vous et je vous colle à la suite toutes les informations possibles.

Remarque : Je me suis rendue compte dans ma recherche de solutions que ma carte réseau wifi est bien identifiable (Intel corporation Wireless 8265/8275) mais je ne trouve pas le module noyau (kernel) correspondant. Mais je n'ai pas réussi à aller plus loin, ma maîtrise de l'informatique étant limitée.

cat /etc/lsb-release

DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04.6 LTS"

lsusb

Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 001 Device 005: ID 8087:0a2b Intel Corp. 
Bus 001 Device 004: ID 0bda:568c Realtek Semiconductor Corp. 
Bus 001 Device 003: ID 0a5c:5832 Broadcom Corp. 
Bus 001 Device 006: ID 090c:1000 Silicon Motion, Inc. - Taiwan (formerly Feiya Technology Corp.) Flash Drive
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub

lspci

00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 05)
00:02.0 VGA compatible controller: Intel Corporation Device 591b (rev 04)
00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 05)
00:14.0 USB controller: Intel Corporation 100 Series/C230 Series Chipset Family USB 3.0 xHCI Controller (rev 31)
00:14.2 Signal processing controller: Intel Corporation 100 Series/C230 Series Chipset Family Thermal Subsystem (rev 31)
00:15.0 Signal processing controller: Intel Corporation 100 Series/C230 Series Chipset Family Serial IO I2C Controller #0 (rev 31)
00:15.1 Signal processing controller: Intel Corporation 100 Series/C230 Series Chipset Family Serial IO I2C Controller #1 (rev 31)
00:16.0 Communication controller: Intel Corporation 100 Series/C230 Series Chipset Family MEI Controller #1 (rev 31)
00:16.3 Serial controller: Intel Corporation 100 Series/C230 Series Chipset Family KT Redirection (rev 31)
00:17.0 SATA controller: Intel Corporation Q170/Q150/B150/H170/H110/Z170/CM236 Chipset SATA Controller [AHCI Mode] (rev 31)
00:1c.0 PCI bridge: Intel Corporation 100 Series/C230 Series Chipset Family PCI Express Root Port #2 (rev f1)
00:1c.2 PCI bridge: Intel Corporation 100 Series/C230 Series Chipset Family PCI Express Root Port #3 (rev f1)
00:1c.4 PCI bridge: Intel Corporation 100 Series/C230 Series Chipset Family PCI Express Root Port #5 (rev f1)
00:1f.0 ISA bridge: Intel Corporation CM238 Chipset LPC/eSPI Controller (rev 31)
00:1f.2 Memory controller: Intel Corporation 100 Series/C230 Series Chipset Family Power Management Controller (rev 31)
00:1f.3 Audio device: Intel Corporation CM238 HD Audio Controller (rev 31)
00:1f.4 SMBus: Intel Corporation 100 Series/C230 Series Chipset Family SMBus (rev 31)
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (5) I219-LM (rev 31)
01:00.0 Network controller: Intel Corporation Wireless 8265 / 8275 (rev 78)
02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader (rev 01)

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

00:1f.6 Ethernet controller [0200]: Intel Corporation Ethernet Connection (5) I219-LM [8086:15e3] (rev 31)
	Subsystem: Dell Ethernet Connection (5) I219-LM [1028:07d0]
	Kernel driver in use: e1000e
	Kernel modules: e1000e
01:00.0 Network controller [0280]: Intel Corporation Wireless 8265 / 8275 [8086:24fd] (rev 78)
	Subsystem: Intel Corporation Device [8086:0050]
02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader [10ec:525a] (rev 01)
	Subsystem: Dell RTS525A PCI Express Card Reader [1028:07d0]

lspci -k

00:00.0 Host bridge: Intel Corporation Xeon E3-1200 v6/7th Gen Core Processor Host Bridge/DRAM Registers (rev 05)
	Subsystem: Dell Device 07d0
00:02.0 VGA compatible controller: Intel Corporation Device 591b (rev 04)
	DeviceName:  Onboard IGD
	Subsystem: Dell Device 07d0
	Kernel driver in use: i915_bpo
	Kernel modules: i915_bpo
00:04.0 Signal processing controller: Intel Corporation Xeon E3-1200 v5/E3-1500 v5/6th Gen Core Processor Thermal Subsystem (rev 05)
	Subsystem: Dell Skylake Processor Thermal Subsystem
	Kernel driver in use: proc_thermal
	Kernel modules: processor_thermal_device
00:14.0 USB controller: Intel Corporation 100 Series/C230 Series Chipset Family USB 3.0 xHCI Controller (rev 31)
	Subsystem: Dell Sunrise Point-H USB 3.0 xHCI Controller
	Kernel driver in use: xhci_hcd
00:14.2 Signal processing controller: Intel Corporation 100 Series/C230 Series Chipset Family Thermal Subsystem (rev 31)
	Subsystem: Dell Sunrise Point-H Thermal subsystem
00:15.0 Signal processing controller: Intel Corporation 100 Series/C230 Series Chipset Family Serial IO I2C Controller #0 (rev 31)
	Subsystem: Dell Sunrise Point-H Serial IO I2C Controller
	Kernel driver in use: intel-lpss
	Kernel modules: intel_lpss_pci
00:15.1 Signal processing controller: Intel Corporation 100 Series/C230 Series Chipset Family Serial IO I2C Controller #1 (rev 31)
	Subsystem: Dell Sunrise Point-H Serial IO I2C Controller
	Kernel driver in use: intel-lpss
	Kernel modules: intel_lpss_pci
00:16.0 Communication controller: Intel Corporation 100 Series/C230 Series Chipset Family MEI Controller #1 (rev 31)
	Subsystem: Dell Sunrise Point-H CSME HECI
	Kernel driver in use: mei_me
	Kernel modules: mei_me
00:16.3 Serial controller: Intel Corporation 100 Series/C230 Series Chipset Family KT Redirection (rev 31)
	Subsystem: Dell Sunrise Point-H KT Redirection
	Kernel driver in use: serial
00:17.0 SATA controller: Intel Corporation Q170/Q150/B150/H170/H110/Z170/CM236 Chipset SATA Controller [AHCI Mode] (rev 31)
	Subsystem: Dell Sunrise Point-H SATA controller [AHCI mode]
	Kernel driver in use: ahci
	Kernel modules: ahci
00:1c.0 PCI bridge: Intel Corporation 100 Series/C230 Series Chipset Family PCI Express Root Port #2 (rev f1)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1c.2 PCI bridge: Intel Corporation 100 Series/C230 Series Chipset Family PCI Express Root Port #3 (rev f1)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1c.4 PCI bridge: Intel Corporation 100 Series/C230 Series Chipset Family PCI Express Root Port #5 (rev f1)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1f.0 ISA bridge: Intel Corporation CM238 Chipset LPC/eSPI Controller (rev 31)
	Subsystem: Dell Sunrise Point-H LPC Controller
00:1f.2 Memory controller: Intel Corporation 100 Series/C230 Series Chipset Family Power Management Controller (rev 31)
	Subsystem: Dell Sunrise Point-H PMC
00:1f.3 Audio device: Intel Corporation CM238 HD Audio Controller (rev 31)
	Subsystem: Dell Device 07d0
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel
00:1f.4 SMBus: Intel Corporation 100 Series/C230 Series Chipset Family SMBus (rev 31)
	Subsystem: Dell Sunrise Point-H SMBus
	Kernel modules: i2c_i801
00:1f.6 Ethernet controller: Intel Corporation Ethernet Connection (5) I219-LM (rev 31)
	Subsystem: Dell Ethernet Connection (5) I219-LM
	Kernel driver in use: e1000e
	Kernel modules: e1000e
01:00.0 Network controller: Intel Corporation Wireless 8265 / 8275 (rev 78)
	Subsystem: Intel Corporation Device 0050
02:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. RTS525A PCI Express Card Reader (rev 01)
	Subsystem: Dell RTS525A PCI Express Card Reader
	Kernel driver in use: rtsx_pci
	Kernel modules: rtsx_pci

sudo lshw -C network

  *-network NON-RÉCLAMÉ   
       description: Network controller
       produit: Wireless 8265 / 8275
       fabriquant: Intel Corporation
       identifiant matériel: 0
       information bus: pci@0000:01:00.0
       version: 78
       bits: 64 bits
       horloge: 33MHz
       fonctionnalités: pm msi pciexpress cap_list
       configuration: latency=0
       ressources: mémoire:ef100000-ef101fff
  *-network
       description: Ethernet interface
       produit: Ethernet Connection (5) I219-LM
       fabriquant: Intel Corporation
       identifiant matériel: 1f.6
       information bus: pci@0000:00:1f.6
       nom logique: enp0s31f6
       version: 31
       numéro de série: 10:65:30:1e:4f:89
       capacité: 1Gbit/s
       bits: 32 bits
       horloge: 33MHz
       fonctionnalités: pm msi 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=0.1-4 latency=0 link=no multicast=yes port=twisted pair
       ressources: irq:128 mémoire:ef200000-ef21ffff

lsmod | sort

ablk_helper            16384  1 aesni_intel
acpi_pad               24576  0
acpi_thermal_rel       16384  1 int3400_thermal
aesni_intel           167936  2
aes_x86_64             20480  1 aesni_intel
ahci                   40960  3
autofs4                40960  2
b43                   421888  0
bcma                   57344  1 b43
binfmt_misc            20480  1
bluetooth             520192  29 bnep,btbcm,btrtl,btusb,rfcomm,btintel
bnep                   20480  2
btbcm                  16384  1 btusb
btintel                16384  1 btusb
btrfs                 987136  0
btrtl                  16384  1 btusb
btusb                  45056  0
cfg80211              565248  2 b43,mac80211
cmac                   16384  2
coretemp               16384  0
crc32_pclmul           16384  0
crct10dif_pclmul       16384  0
cryptd                 20480  3 ghash_clmulni_intel,aesni_intel,ablk_helper
dcdbas                 16384  1 dell_laptop
dell_laptop            20480  0
dell_led               16384  1
dell_rbtn              16384  0
dell_smm_hwmon         16384  0
dell_smo8800           16384  0
dell_wmi               16384  0
drm                   364544  8 i915_bpo,drm_kms_helper
drm_kms_helper        155648  1 i915_bpo
e1000e                241664  0
fb_sys_fops            16384  1 drm_kms_helper
fjes                   28672  0
gf128mul               16384  1 lrw
ghash_clmulni_intel    16384  0
glue_helper            16384  1 aesni_intel
hid                   122880  2 i2c_hid,hid_alps
hid_alps               16384  0
i2c_algo_bit           16384  1 i915_bpo
i2c_designware_core    20480  1 i2c_designware_platform
i2c_designware_platform    16384  0
i2c_hid                20480  0
i915_bpo             1343488  7
idma64                 20480  0
input_leds             16384  0
int3400_thermal        16384  0
int3403_thermal        16384  0
int340x_thermal_zone    16384  2 processor_thermal_device,int3403_thermal
intel_hid              16384  0
intel_ips              20480  1 i915_bpo
intel_lpss             16384  1 intel_lpss_pci
intel_lpss_pci         16384  0
intel_powerclamp       16384  0
intel_rapl             20480  0
intel_soc_dts_iosf     16384  1 processor_thermal_device
irqbypass              16384  1 kvm
joydev                 20480  0
kvm                   552960  1 kvm_intel
kvm_intel             176128  0
libahci                32768  1 ahci
lp                     20480  0
lrw                    16384  1 aesni_intel
mac80211              737280  1 b43
mac_hid                16384  0
media                  24576  2 uvcvideo,videodev
mei                    98304  1 mei_me
mei_me                 36864  0
memstick               20480  1 rtsx_pci_ms
Module                  Size  Used by
msr                    16384  0
nvram                  16384  0
parport                49152  3 lp,ppdev,parport_pc
parport_pc             32768  0
ppdev                  20480  0
pps_core               20480  1 ptp
processor_thermal_device    16384  0
ptp                    20480  1 e1000e
raid6_pq              102400  1 btrfs
rfcomm                 69632  2
rtsx_pci               53248  2 rtsx_pci_ms,rtsx_pci_sdmmc
rtsx_pci_ms            20480  0
rtsx_pci_sdmmc         24576  0
serio_raw              16384  0
shpchp                 36864  0
snd                    81920  17 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel,snd_seq_device
snd_hda_codec         135168  4 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel
snd_hda_codec_generic    73728  1 snd_hda_codec_realtek
snd_hda_codec_hdmi     49152  1
snd_hda_codec_realtek    94208  1
snd_hda_core           90112  5 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
snd_hda_intel          40960  3
snd_hwdep              16384  1 snd_hda_codec
snd_pcm               106496  4 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_core
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_seq_midi           16384  0
snd_seq_midi_event     16384  1 snd_seq_midi
snd_timer              32768  2 snd_pcm,snd_seq
soundcore              16384  1 snd
sparse_keymap          16384  2 dell_wmi,intel_hid
ssb                    65536  1 b43
syscopyarea            16384  1 drm_kms_helper
sysfillrect            16384  1 drm_kms_helper
sysimgblt              16384  1 drm_kms_helper
uas                    24576  0
usb_storage            73728  2 uas
uvcvideo               90112  0
v4l2_common            16384  1 videobuf2_v4l2
video                  40960  3 i915_bpo,dell_wmi,dell_laptop
videobuf2_core         36864  2 uvcvideo,videobuf2_v4l2
videobuf2_memops       16384  1 videobuf2_vmalloc
videobuf2_v4l2         28672  1 uvcvideo
videobuf2_vmalloc      16384  1 uvcvideo
videodev              180224  4 uvcvideo,v4l2_common,videobuf2_core,videobuf2_v4l2
virt_dma               16384  1 idma64
wmi                    20480  2 dell_led,dell_wmi
x86_pkg_temp_thermal    16384  0
xor                    24576  1 btrfs

iwconfig

lo        no wireless extensions.

enp0s31f6  no wireless extensions.

ifconfig -a

enp0s31f6 Link encap:Ethernet  HWaddr 10:65:30:1e:4f:89  
          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:16 Mémoire:ef200000-ef220000 

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:13124 erreurs:0 :0 overruns:0 frame:0
          TX packets:13124 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1 
          Octets reçus:977168 (977.1 KB) Octets transmis:977168 (977.1 KB)

sudo iwlist scan

lo        Interface doesn't support scanning.

enp0s31f6  Interface doesn't support scanning.

uname -r -m

4.4.0-143-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

nm-tool : commande introuvable

sudo rfkill list

0: dell-wifi: Wireless LAN
	Soft blocked: no
	Hard blocked: no
1: dell-bluetooth: Bluetooth
	Soft blocked: no
	Hard blocked: no
2: hci0: Bluetooth
	Soft blocked: no
	Hard blocked: no

nmcli connection show

NOM                   UUID                                  TYPE             PÉRIPHÉRIQUE 
AndroidHotspot1926    1385dbb1-9808-40c7-9e28-1cc1b7af9b38  802-11-wireless  --           
Connexion Ethernet 1  ac3076ce-3f44-49f8-9440-e7866e45f59b  802-3-ethernet   --           
Livebox-13AA          de679cba-311c-4ce7-b242-57766728321b  802-11-wireless  --           
Livebox-6856          52b90079-1306-4e26-b6d5-2b1c7a4dd95d  802-11-wireless  --           
Livebox-6F04          69891adc-65bf-4017-89fa-e6dbfe6e354c  802-11-wireless  --           
UM-net                7e8e2c0a-4056-4245-8d47-a846609d02bb  802-11-wireless  --           
UM-net-v2-test        a113f277-f2e8-48de-a568-23da82e56830  802-11-wireless  --           
_SNCF_WIFI_INOUI      d29c173c-9160-4e47-bc5e-9988a61eafe0  802-11-wireless  --           
eduroam               9ab1982a-e0d0-4d8b-86bd-0afd1a9cf7b6  802-11-wireless  --           
eduspot               01b5c4b3-ff05-42f5-8aa7-2d483050b7e8  802-11-wireless  --

Désolé pour les accents qui sortent mal.
Et merci pour votre aide !!!!

Dernière modification par Greenouille (Le 20/03/2019, à 20:25)

Hors ligne

#2 Le 20/03/2019, à 19:52

xubu1957

Re : [Résolu] Connexion wifi ou ethernet impossible

Bonjour,

Vu la carte :

Network controller: Intel Corporation Wireless 8265 / 8275 (rev 78)

le noyau :

4.4.0-143-generic x86_64

et l'engin :

dell

Réponse identique > Wifi ne s'affiche plus après désactivation ("UNCLAIMED")

Cas 10

Dernière modification par xubu1957 (Le 14/06/2019, à 21:21)

Conseils pour les nouveaux demandeurs et pas qu'eux
Important : Pensez à passer vos sujets en [Réso|u] lorsque ceux-ci le sont, au début du titre en cliquant sur Modifier sous le premier message, et un bref récapitulatif de la solution à la fin de celui-ci. Merci.                   Membre de Linux-Azur

Hors ligne

#3 Le 20/03/2019, à 20:25

Greenouille

Re : [Résolu] Connexion wifi ou ethernet impossible

Merci beaucoup xubu1957 !

En effet, j'ai redémarré sur le noyau 4.4.0-142 et ça fonctionne à nouveau. Encore merci !

Hors ligne

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