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problème wifi de mon ordinateur

PROLIFIIK

Bonjour .
J'ai un souci avec mon wifi. Lorsque je suis connecté au wifi et qu'il est déconnecté. Je suis obligé de redémarrer avant de pouvoir me reconnecter. Ce qui n'était pas le cas dans mon installation précédente.
Et même quand je redémarre. Quelques instants après je suis encore déconnecté.
Et je reprends le redémarrage et ainsi de suite.
J'aimerais savoir ce qui peut être à l'origine:
-est-ce le matériel ?
-est-ce un problème de logiciel ?
Merci de votre aide.

xubu1957

Bonjour,

Peux-tu donner tes infos : Configuration wifi ?

tu peux utiliser le : [doc]wificheck[/doc]
Nota : Le fichier wificheck.log est créé dans: /home/utilisateur
Il ne reste plus qu'à copier/coller son contenu sur le forum

en te servant du : Retour utilisable de commande

PROLIFIIK

Merci, les voici:

~$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04.2 LTS"
~$ lsusb
Bus 001 Device 002: ID 8087:8000 Intel Corp. 
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 003 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 002 Device 002: ID 04f2:b3a6 Chicony Electronics Co., Ltd 
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
~$ lspci
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 0b)
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b)
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 0b)
00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04)
00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04)
00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)
00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 1 (rev e4)
00:1c.1 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 2 (rev e4)
00:1c.2 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 3 (rev e4)
00:1c.3 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 4 (rev e4)
00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04)
00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04)
00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04)
00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04)
08:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188EE Wireless Network Adapter (rev 01)
09:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 08)
~$ lspci -k -nn | grep -A 3 -i net
08:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8188EE Wireless Network Adapter [10ec:8179] (rev 01)
	DeviceName: Realtek 802.11 b/g/n w/ *2 antennas
	Subsystem: Hewlett-Packard Company RTL8188EE Wireless Network Adapter [103c:197d]
	Kernel driver in use: rtl8188ee
	Kernel modules: rtl8188ee
09:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [10ec:8136] (rev 08)
	DeviceName: Realtek PCIe FE Family Controller
	Subsystem: Hewlett-Packard Company RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller [103c:2163]
	Kernel driver in use: r8169
	Kernel modules: r8169
~$ lspci -k
00:00.0 Host bridge: Intel Corporation Haswell-ULT DRAM Controller (rev 0b)
	Subsystem: Hewlett-Packard Company Haswell-ULT DRAM Controller
	Kernel driver in use: hsw_uncore
00:02.0 VGA compatible controller: Intel Corporation Haswell-ULT Integrated Graphics Controller (rev 0b)
	Subsystem: Hewlett-Packard Company Haswell-ULT Integrated Graphics Controller
	Kernel driver in use: i915
	Kernel modules: i915
00:03.0 Audio device: Intel Corporation Haswell-ULT HD Audio Controller (rev 0b)
	Subsystem: Hewlett-Packard Company Haswell-ULT HD Audio Controller
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel
00:14.0 USB controller: Intel Corporation 8 Series USB xHCI HC (rev 04)
	Subsystem: Hewlett-Packard Company 8 Series USB xHCI HC
	Kernel driver in use: xhci_hcd
00:16.0 Communication controller: Intel Corporation 8 Series HECI #0 (rev 04)
	Subsystem: Hewlett-Packard Company 8 Series HECI
	Kernel driver in use: mei_me
	Kernel modules: mei_me
00:1b.0 Audio device: Intel Corporation 8 Series HD Audio Controller (rev 04)
	Subsystem: Hewlett-Packard Company 8 Series HD Audio Controller
	Kernel driver in use: snd_hda_intel
	Kernel modules: snd_hda_intel
00:1c.0 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 1 (rev e4)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1c.1 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 2 (rev e4)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1c.2 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 3 (rev e4)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1c.3 PCI bridge: Intel Corporation 8 Series PCI Express Root Port 4 (rev e4)
	Kernel driver in use: pcieport
	Kernel modules: shpchp
00:1d.0 USB controller: Intel Corporation 8 Series USB EHCI #1 (rev 04)
	Subsystem: Hewlett-Packard Company 8 Series USB EHCI
	Kernel driver in use: ehci-pci
00:1f.0 ISA bridge: Intel Corporation 8 Series LPC Controller (rev 04)
	Subsystem: Hewlett-Packard Company 8 Series LPC Controller
	Kernel driver in use: lpc_ich
	Kernel modules: lpc_ich
00:1f.2 SATA controller: Intel Corporation 8 Series SATA Controller 1 [AHCI mode] (rev 04)
	Subsystem: Hewlett-Packard Company 8 Series SATA Controller 1 [AHCI mode]
	Kernel driver in use: ahci
	Kernel modules: ahci
00:1f.3 SMBus: Intel Corporation 8 Series SMBus Controller (rev 04)
	Subsystem: Hewlett-Packard Company 8 Series SMBus Controller
	Kernel modules: i2c_i801
08:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188EE Wireless Network Adapter (rev 01)
	DeviceName: Realtek 802.11 b/g/n w/ *2 antennas
	Subsystem: Hewlett-Packard Company RTL8188EE Wireless Network Adapter
	Kernel driver in use: rtl8188ee
	Kernel modules: rtl8188ee
09:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller (rev 08)
	DeviceName: Realtek PCIe FE Family Controller
	Subsystem: Hewlett-Packard Company RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
	Kernel driver in use: r8169
	Kernel modules: r8169
~$ sudo lshw -C network
[sudo] Mot de passe de prolifiik : 
  *-network               
       description: Interface réseau sans fil
       produit: RTL8188EE Wireless Network Adapter
       fabriquant: Realtek Semiconductor Co., Ltd.
       identifiant matériel: 0
       information bus: pci@0000:08:00.0
       nom logique: wlo1
       version: 01
       numéro de série: 70:18:8b:1d:57:00
       bits: 64 bits
       horloge: 33MHz
       fonctionnalités: pm msi pciexpress bus_master cap_list ethernet physical wireless
       configuration: broadcast=yes driver=rtl8188ee driverversion=4.4.0-64-generic firmware=N/A ip=192.168.225.117 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
       ressources: irq:47 portE/S:4000(taille=256) mémoire:b2500000-b2503fff
  *-network
       description: Ethernet interface
       produit: RTL8101/2/6E PCI Express Fast/Gigabit Ethernet controller
       fabriquant: Realtek Semiconductor Co., Ltd.
       identifiant matériel: 0
       information bus: pci@0000:09:00.0
       nom logique: eno1
       version: 08
       numéro de série: a0:48:1c:0d:6f:b3
       taille: 10Mbit/s
       capacité: 100Mbit/s
       bits: 64 bits
       horloge: 33MHz
       fonctionnalités: pm msi pciexpress msix vpd bus_master cap_list ethernet physical tp mii 10bt 10bt-fd 100bt 100bt-fd autonegotiation
       configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl8106e-2_0.0.1 04/23/13 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
       ressources: irq:42 portE/S:3000(taille=256) mémoire:b2404000-b2404fff mémoire:b2400000-b2403fff
~$ lsmod
Module                  Size  Used by
drbg                   32768  1
ansi_cprng             16384  0
ctr                    16384  2
ccm                    20480  2
nvram                  16384  0
msr                    16384  0
pci_stub               16384  1
vboxpci                24576  0
vboxnetadp             28672  0
vboxnetflt             28672  0
vboxdrv               454656  3 vboxnetadp,vboxnetflt,vboxpci
binfmt_misc            20480  1
nls_iso8859_1          16384  1
hp_wmi                 16384  0
sparse_keymap          16384  1 hp_wmi
uvcvideo               90112  0
videobuf2_vmalloc      16384  1 uvcvideo
videobuf2_memops       16384  1 videobuf2_vmalloc
videobuf2_v4l2         28672  1 uvcvideo
videobuf2_core         36864  2 uvcvideo,videobuf2_v4l2
v4l2_common            16384  1 videobuf2_v4l2
videodev              176128  4 uvcvideo,v4l2_common,videobuf2_core,videobuf2_v4l2
media                  24576  2 uvcvideo,videodev
intel_rapl             20480  0
x86_pkg_temp_thermal    16384  0
intel_powerclamp       16384  0
coretemp               16384  0
arc4                   16384  2
rtl8188ee              86016  0
rtl_pci                28672  1 rtl8188ee
kvm_intel             172032  0
rtlwifi                77824  2 rtl_pci,rtl8188ee
mac80211              737280  3 rtl_pci,rtlwifi,rtl8188ee
kvm                   544768  1 kvm_intel
irqbypass              16384  1 kvm
snd_hda_codec_hdmi     53248  1
cfg80211              565248  2 mac80211,rtlwifi
snd_hda_codec_realtek    86016  1
crct10dif_pclmul       16384  0
crc32_pclmul           16384  0
snd_hda_codec_generic    77824  1 snd_hda_codec_realtek
ghash_clmulni_intel    16384  0
snd_hda_intel          40960  5
snd_hda_codec         135168  4 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel
aesni_intel           167936  4
snd_hda_core           73728  5 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
snd_hwdep              16384  1 snd_hda_codec
aes_x86_64             20480  1 aesni_intel
snd_pcm               106496  4 snd_hda_codec_hdmi,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
lrw                    16384  1 aesni_intel
gf128mul               16384  1 lrw
glue_helper            16384  1 aesni_intel
snd_seq_device         16384  3 snd_seq,snd_rawmidi,snd_seq_midi
ablk_helper            16384  1 aesni_intel
snd_timer              32768  2 snd_pcm,snd_seq
cryptd                 20480  3 ghash_clmulni_intel,aesni_intel,ablk_helper
hp_accel               28672  0
lis3lv02d              20480  1 hp_accel
snd                    81920  21 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
input_polldev          16384  1 lis3lv02d
soundcore              16384  1 snd
mei_me                 36864  0
input_leds             16384  0
mei                    98304  1 mei_me
joydev                 20480  0
serio_raw              16384  0
lpc_ich                24576  0
hp_wireless            16384  0
shpchp                 36864  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
i915                 1208320  4
i2c_algo_bit           16384  1 i915
drm_kms_helper        155648  1 i915
syscopyarea            16384  1 drm_kms_helper
sysfillrect            16384  1 drm_kms_helper
psmouse               131072  0
sysimgblt              16384  1 drm_kms_helper
fb_sys_fops            16384  1 drm_kms_helper
ahci                   36864  4
drm                   364544  5 i915,drm_kms_helper
r8169                  81920  0
libahci                32768  1 ahci
mii                    16384  1 r8169
wmi                    20480  1 hp_wmi
video                  40960  1 i915
fjes                   28672  0
~$ iwconfig
lo        no wireless extensions.

wlo1      IEEE 802.11bgn  ESSID:"Connectify-octavio"  
          Mode:Managed  Frequency:2.457 GHz  Access Point: B4:74:9F:C6:9D:E7   
          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=42/70  Signal level=-68 dBm  
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:1425   Missed beacon:0

eno1      no wireless extensions.

~$ ifconfig
eno1      Link encap:Ethernet  HWaddr a0:48:1c:0d:6f:b3  
          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)

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:728 erreurs:0 :0 overruns:0 frame:0
          TX packets:728 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1 
          Octets reçus:72333 (72.3 KB) Octets transmis:72333 (72.3 KB)

wlo1      Link encap:Ethernet  HWaddr 70:18:8b:1d:57:00  
          inet adr:192.168.225.117  Bcast:192.168.225.255  Masque:255.255.255.0
          adr inet6: fe80::6355:8ee8:a6c6:9a85/64 Scope:Lien
          UP BROADCAST RUNNING MULTICAST  MTU:1500  Metric:1
          Packets reçus:31966 erreurs:0 :0 overruns:0 frame:0
          TX packets:20112 errors:0 dropped:0 overruns:0 carrier:0
          collisions:0 lg file transmission:1000 
          Octets reçus:45975408 (45.9 MB) Octets transmis:2086851 (2.0 MB)

:~$ sudo iwlist scan
lo        Interface doesn't support scanning.

wlo1      Scan completed :
          Cell 01 - Address: B4:74:9F:C6:9D:E7
                    Channel:10
                    Frequency:2.457 GHz (Channel 10)
                    Quality=36/70  Signal level=-74 dBm  
                    Encryption key:on
                    ESSID:"Connectify-octavio"
                    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=0000000074285b0d
                    Extra: Last beacon: 60ms ago
                    IE: Unknown: 0012436F6E6E6563746966792D6F63746176696F
                    IE: Unknown: 010882848B962430486C
                    IE: Unknown: 03010A
                    IE: Unknown: 0706555320010D14
                    IE: Unknown: 200100
                    IE: Unknown: 23021000
                    IE: Unknown: 2A0100
                    IE: Unknown: 2F0100
                    IE: IEEE 802.11i/WPA2 Version 1
                        Group Cipher : CCMP
                        Pairwise Ciphers (1) : CCMP
                        Authentication Suites (1) : PSK
                    IE: Unknown: 32040C121860
                    IE: Unknown: 2D1A2C1817FF00000000000000000000000000000000000000000000
                    IE: Unknown: 3D160A080400000000000000000000000000000000000000
                    IE: Unknown: 4A0E14000A002C01C800140005001900
                    IE: Unknown: 7F080100000000000040
                    IE: Unknown: DD090010180203000C0000
                    IE: Unknown: DD180050F2020101800003A4000027A4000042435E0062322F00

eno1      Interface doesn't support scanning.

~$ uname -r -m 
4.4.0-64-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
La commande « nm-tool » est introuvable, vouliez-vous dire :
 La commande « dm-tool » du paquet « lightdm » (main)
nm-tool : commande introuvable
 ~$ sudo rfkill list
0: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no
~$ nmcli connection show
NOM                   UUID                                  TYPE             PÉRIPHÉRIQUE 
Connectify-octavio 1  65ae02f2-b6ac-43f2-b5f7-b195934cb7f8  802-11-wireless  wlo1         
Connexion filaire 1   dcfce8c6-3811-3cac-9559-631d7e3ad53d  802-3-ethernet   --           
Famille Gahi          2e42b1df-6932-4f20-bc04-43c281d0c45a  802-11-wireless  --

Comme vous pouvez le constatez, la commande nm-tool est inconnue.

xubu1957

Bonjour,

Pour ta carte wifi :

Network controller: Realtek Semiconductor Co., Ltd. RTL8188EE Wireless Network Adapter (rev 01)

cette solution pour la version 16.04 :

ycod48 a écriten fouillant le forum anglais, je trouve cette proposition sur un post : http://askubuntu.com/questions/763508/realtek-rtl8188ee-drivers-in-xenial

sudo apt-get install build-essential linux-headers-generic git dkms
git clone http://github.com/lwfinger/rtlwifi_new.git
cd /path/to/rtlwifi_new
make
sudo modprobe -rv rtl8188ee
sudo make install
sudo modprobe -v rtl8188ee

...

et aussi, modifier, le chiffrement de la Box , comme le conseille toutafai dans de nombreuses discussions :

Le 14/11/2016, moko138 a écritEntretemps, j'ai retrouvé ce message ./viewtopic.php?pid=21563767#p21563767 de toutafai (8/2016) :
Ta box utilise un double chiffrement (à la fois du wpa1 et du wpa2), c'est certainement la source de ton problème.
Connecte toi sur l'interface d'administration de ta box et change moi cela pour
soit que du wpa1 TKIP,
soit que du wpa2 AES
(ne pas oublier d'enregistrer les changements sur ta box),
Une fois que ce sera fait, tu ne devrais plus avoir de déconnexions