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#1 Le 11/12/2014, à 23:14
- Cardionecteur
Résolu ! problème Wifi instable : déconnexions aléatoires
Bonjour, j'ai installé Ubuntu très récemment, le mardi 9 décembre en DualBoot avec Windows. Globalement très satisfait, il subsiste un problème qui réside dans un WiFi instable dont la connexion se perd de manière aléatoire. (j'ai auparavant changé de canal pour améliorer ma vitesse de co). Pour résoudre (très temporairement! et éphémèrement! le problème, je désactive et réactive le réseau : c'est lourd.)
Merci d'avance ;)
cardionecteur@cardionecteur-Vostro-V131:~$ cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04.1 LTS"
cardionecteur@cardionecteur-Vostro-V131:~$ lsusb
Bus 002 Device 003: ID 138a:0011 Validity Sensors, Inc. VFS5011 Fingerprint Reader
Bus 002 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 002 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 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 004: ID 1bcf:2880 Sunplus Innovation Technology Inc.
Bus 001 Device 003: ID 8086:0189 Intel Corp.
Bus 001 Device 002: ID 8087:0024 Intel Corp. Integrated Rate Matching Hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
cardionecteur@cardionecteur-Vostro-V131:~$ lspci
00:00.0 Host bridge: Intel Corporation 2nd Generation Core Processor Family DRAM Controller (rev 09)
00:02.0 VGA compatible controller: Intel Corporation 2nd Generation Core Processor Family Integrated Graphics Controller (rev 09)
00:16.0 Communication controller: Intel Corporation 6 Series/C200 Series Chipset Family MEI Controller #1 (rev 04)
00:1a.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #2 (rev 05)
00:1b.0 Audio device: Intel Corporation 6 Series/C200 Series Chipset Family High Definition Audio Controller (rev 05)
00:1c.0 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 1 (rev b5)
00:1c.1 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 2 (rev b5)
00:1c.3 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 4 (rev b5)
00:1c.4 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 5 (rev b5)
00:1c.7 PCI bridge: Intel Corporation 6 Series/C200 Series Chipset Family PCI Express Root Port 8 (rev b5)
00:1d.0 USB controller: Intel Corporation 6 Series/C200 Series Chipset Family USB Enhanced Host Controller #1 (rev 05)
00:1f.0 ISA bridge: Intel Corporation HM67 Express Chipset Family LPC Controller (rev 05)
00:1f.2 SATA controller: Intel Corporation 6 Series/C200 Series Chipset Family 6 port SATA AHCI Controller (rev 05)
00:1f.3 SMBus: Intel Corporation 6 Series/C200 Series Chipset Family SMBus Controller (rev 05)
05:00.0 Ethernet controller: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller (rev 06)
09:00.0 Network controller: Intel Corporation Centrino Wireless-N 1030 [Rainbow Peak] (rev 34)
0b:00.0 USB controller: Texas Instruments TUSB73x0 SuperSpeed USB 3.0 xHCI Host Controller (rev 02)
cardionecteur@cardionecteur-Vostro-V131:~$ lspci -nn | grep -i net
05:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 06)
09:00.0 Network controller [0280]: Intel Corporation Centrino Wireless-N 1030 [Rainbow Peak] [8086:008a] (rev 34)
cardionecteur@cardionecteur-Vostro-V131:~$ lsmod
Module Size Used by
ctr 13049 1
ccm 17773 1
bnep 19624 2
rfcomm 69160 8
snd_hda_codec_hdmi 46368 1
snd_hda_codec_conexant 57441 1
dell_wmi 12761 0
sparse_keymap 13948 1 dell_wmi
uvcvideo 80885 0
videobuf2_vmalloc 13216 1 uvcvideo
videobuf2_memops 13362 1 videobuf2_vmalloc
videobuf2_core 40664 1 uvcvideo
videodev 134688 2 uvcvideo,videobuf2_core
intel_rapl 18773 0
x86_pkg_temp_thermal 14205 0
intel_powerclamp 14705 0
coretemp 13435 0
kvm_intel 143187 0
dell_laptop 18168 0
dcdbas 14928 1 dell_laptop
kvm 455835 1 kvm_intel
crct10dif_pclmul 14289 0
arc4 12608 2
crc32_pclmul 13113 0
ghash_clmulni_intel 13216 0
iwldvm 232285 0
cryptd 20359 1 ghash_clmulni_intel
mac80211 630653 1 iwldvm
snd_hda_intel 56451 3
snd_hda_codec 192906 3 snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_hda_intel
snd_hwdep 13602 1 snd_hda_codec
joydev 17381 0
serio_raw 13462 0
snd_pcm 102099 3 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
snd_page_alloc 18710 2 snd_pcm,snd_hda_intel
snd_seq_midi 13324 0
snd_seq_midi_event 14899 1 snd_seq_midi
snd_rawmidi 30144 1 snd_seq_midi
snd_seq 61560 2 snd_seq_midi_event,snd_seq_midi
snd_seq_device 14497 3 snd_seq,snd_rawmidi,snd_seq_midi
snd_timer 29482 2 snd_pcm,snd_seq
iwlwifi 169932 1 iwldvm
snd 69322 17 snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_hda_codec_conexant,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_seq_device,snd_seq_midi
parport_pc 32701 0
btusb 32412 0
cfg80211 484040 3 iwlwifi,mac80211,iwldvm
bluetooth 391136 22 bnep,btusb,rfcomm
ppdev 17671 0
lp 17759 0
lpc_ich 21080 0
parport 42348 3 lp,ppdev,parport_pc
i915 784207 4
wmi 19177 1 dell_wmi
soundcore 12680 1 snd
video 19476 1 i915
drm_kms_helper 55071 1 i915
mac_hid 13205 0
mei_me 18627 0
mei 82276 1 mei_me
drm 303102 5 i915,drm_kms_helper
i2c_algo_bit 13413 1 i915
r8169 67581 0
ahci 25819 2
psmouse 106714 0
libahci 32716 1 ahci
mii 13934 1 r8169
cardionecteur@cardionecteur-Vostro-V131:~$ iwconfig
eth0 no wireless extensions.
lo no wireless extensions.
Bit Rate=39 Mb/s Tx-Power=15 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=46/70 Signal level=-64 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:1 Invalid misc:73 Missed beacon:0
cardionecteur@cardionecteur-Vostro-V131:~$ ifconfig
eth0 Link encap:Ethernet HWaddr 24:b6:fd:59:9a:68
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:1B) Octets transmis:106953 (106.9 KB)
cardionecteur@cardionecteur-Vostro-V131:~$ sudo iwlist scan
[sudo] password for cardionecteur:
eth0 Interface doesn't support scanning.
lo Interface doesn't support scanning.
wlan0 Scan completed :
Channel:7
Frequency:2.442 GHz (Channel 7)
Quality=55/70 Signal level=-55 dBm
Encryption key:on
ESSID:"Live"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=0000000c78026179
Extra: Last beacon: 88ms ago
IE: Unknown: 000C4C697665626F782D66656663
IE: Unknown: 010882848B960C121824
IE: Unknown: 030107
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: DD180050F2020101830003A4000027A4000042435E0062322F00
IE: Unknown: 2D1A0C101BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1607080800000000000000000000000000000000000000
IE: Unknown: DD0900037F01010000FF7F
IE: Unknown: DD0A00037F04010001000000
IE: Unknown: 0706465220010D14
IE: Unknown: DD8B0050F204104A0001101044000102103B0001031047001000000000000010000000001D6A6B514B10210005536167656D1023000F4C697665626F78204654544820763210240007422E312E302E301042000F414E313132373832363937303637331054000800060050F20400011011000F4C697665626F782046545448207632100800020086103C000101
Cell 02 - Address: 06:1D:6A:6B:51:4B
Channel:7
Frequency:2.442 GHz (Channel 7)
Quality=39/70 Signal level=-71 dBm
Encryption key:off
ESSID:"orange"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 6 Mb/s
9 Mb/s; 12 Mb/s; 18 Mb/s
Bit Rates:24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=0000000c7802b180
Extra: Last beacon: 500ms ago
IE: Unknown: 00066F72616E6765
IE: Unknown: 010882848B960C121824
IE: Unknown: 030107
IE: Unknown: 050402030000
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: DD180050F2020101830003A4000027A4000042435E0062322F00
IE: Unknown: 2D1A0C101BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1607080800000000000000000000000000000000000000
IE: Unknown: DD0900037F01010000FF7F
IE: Unknown: DD0A00037F04010001000000
IE: Unknown: 0706465220010D14
cardionecteur@cardionecteur-Vostro-V131:~$ cat /etc/network/interfaces
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
cardionecteur@cardionecteur-Vostro-V131:~$ nm-tool
NetworkManager Tool
State: connected (global)
- Device: wlan0 [Livebox-] ------------------------------------------------
Type: 802.11 WiFi
Driver: iwlwifi
State: connected
Default: yes
Capabilities:
Speed: 58 Mb/s
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points (* = current AP)
orange: Infra, 06:1D:6A:6B:51:4B, Freq 2442 MHz, Rate 54 Mb/s, Strength 55
*Livebox-fefc: Infra, 00:1D:6A:6B:51:4B, Freq 2442 MHz, Rate 54 Mb/s, Strength 57 WPA WPA2
IPv4 Settings:
Address: 192.168
Prefix: 24 (255.255.255.0)
Gateway: 192.168.1.1
DNS: 192.168.1.1
- Device: eth0 -----------------------------------------------------------------
Type: Wired
Driver: r8169
State: unavailable
Default: no
Capabilities:
Carrier Detect: yes
Wired Properties
Carrier: off
cardionecteur@cardionecteur-Vostro-V131:~$ uname -r -m
3.13.0-43-generic x86_64
cardionecteur@cardionecteur-Vostro-V131:~$ sudo rfkill list
0: hci0: Bluetooth
Soft blocked: no
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
Dernière modification par Cardionecteur (Le 12/12/2014, à 19:47)
Hors ligne
#2 Le 12/12/2014, à 11:48
- inbox
Re : Résolu ! problème Wifi instable : déconnexions aléatoires
Salut,
Sur le forum, existe une solution pour ton composant wifi.
Je précise qu'il faut lire le sujet avant de chercher à appliquer ce qui est proposé.
A+
Un problème résolu ? Indiquez le en modifiant le titre du sujet.
Hors ligne
#3 Le 12/12/2014, à 19:46
- Cardionecteur
Re : Résolu ! problème Wifi instable : déconnexions aléatoires
Merci beaucoup le problème semble résolu après quelques heures d'utilisation
Hors ligne