#1 Le 20/09/2016, à 12:26
- lolcat
[Résolu] Wifi lente et aléatoire depuis mon passage en version 16.04
Bonjour,
Hier, je suis passé de la version 14.04 LTS à la version 16.04 LTS. Pour une raison que j'ignore, ma wifi qui fonctionnait très bien sous 14.04 est devenue très capricieuse sous 16.04 LTS, c'est-à dire très lente et très aléatoire. Elle coupe environ toutes les trois minutes. Quelqu'un aurait-il une idée du problème? Eventuellement, s'il n'y a pas d'autre solution, je suis prêt à revenir à 14.04 mais je trouve ça dommage et je ne sais pas comment m'y prendre. Voici mon wificheck. Si vous avez besoin d'autres renseignements, n"hésitez pas à me demander.
Merci d'avance pour votre aide.
>> cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=16.04
DISTRIB_CODENAME=xenial
DISTRIB_DESCRIPTION="Ubuntu 16.04.1 LTS"
>> lsusb
Bus 007 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 006 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 006: ID 046d:c31c Logitech, Inc. Keyboard K120
Bus 001 Device 005: ID 0bda:8178 Realtek Semiconductor Corp. RTL8192CU 802.11n WLAN Adapter
Bus 001 Device 004: ID 0458:003a KYE Systems Corp. (Mouse Systems) NetScroll+ Mini Traveler / Genius NetScroll 120
Bus 001 Device 003: ID 05e3:0608 Genesys Logic, Inc. Hub
Bus 001 Device 007: ID 046d:0825 Logitech, Inc. Webcam C270
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 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
02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 06)
Subsystem: Gigabyte Technology Co., Ltd Motherboard [1458:e000]
Kernel driver in use: r8169
Kernel modules: r8169
>> sudo lshw -C network
*-network
description: Ethernet interface
produit: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
fabriquant: Realtek Semiconductor Co., Ltd.
identifiant matériel: 0
information bus: pci@0000:02:00.0
nom logique: eth0
version: 06
numéro de série: 1c:6f:65:a3:65:2a
taille: 10Mbit/s
capacité: 1Gbit/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 1000bt 1000bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=r8169 driverversion=2.3LK-NAPI duplex=half firmware=rtl_nic/rtl8168e-2.fw latency=0 link=no multicast=yes port=MII speed=10Mbit/s
ressources: irq:26 portE/S:de00(taille=256) mémoire:fdbff000-fdbfffff mémoire:fdbf8000-fdbfbfff
*-network
description: Interface réseau sans fil
identifiant matériel: 1
information bus: usb@1:6.3
nom logique: wlan0
numéro de série: 00:e0:4c:16:83:7b
fonctionnalités: ethernet physical wireless
configuration: broadcast=yes driver=rtl8192cu driverversion=4.4.0-36-generic firmware=N/A ip=192.168.178.31 link=yes multicast=yes wireless=IEEE 802.11bgn
>> lsmod
Module Size Used by
drbg 28672 1
ansi_cprng 16384 0
ctr 16384 1
ccm 20480 1
snd_hrtimer 16384 1
rtl8xxxu 69632 0
arc4 16384 2
rtl8192cu 65536 0
rtl_usb 20480 1 rtl8192cu
rtl8192c_common 49152 1 rtl8192cu
rtlwifi 69632 3 rtl_usb,rtl8192c_common,rtl8192cu
mac80211 659456 4 rtl8xxxu,rtl_usb,rtlwifi,rtl8192cu
cfg80211 499712 2 mac80211,rtlwifi
uvcvideo 77824 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
snd_hda_codec_realtek 73728 1
videodev 155648 4 uvcvideo,v4l2_common,videobuf2_core,videobuf2_v4l2
media 24576 2 uvcvideo,videodev
snd_hda_codec_hdmi 49152 1
snd_hda_codec_generic 69632 1 snd_hda_codec_realtek
snd_hda_intel 36864 5
snd_hda_codec 118784 4 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_intel
snd_usb_audio 147456 1
snd_hda_core 61440 5 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_codec_generic,snd_hda_codec,snd_hda_intel
snd_usbmidi_lib 28672 1 snd_usb_audio
snd_hwdep 16384 2 snd_usb_audio,snd_hda_codec
snd_pcm 94208 5 snd_usb_audio,snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel,snd_hda_core
input_leds 16384 0
joydev 20480 0
snd_seq_midi 16384 0
kvm 479232 0
snd_seq_midi_event 16384 1 snd_seq_midi
snd_rawmidi 28672 2 snd_usbmidi_lib,snd_seq_midi
snd_seq 57344 3 snd_seq_midi_event,snd_seq_midi
snd_seq_device 16384 3 snd_seq,snd_rawmidi,snd_seq_midi
irqbypass 16384 1 kvm
snd_timer 32768 3 snd_hrtimer,snd_pcm,snd_seq
snd 69632 26 snd_hda_codec_realtek,snd_usb_audio,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec_generic,snd_usbmidi_lib,snd_hda_codec,snd_hda_intel,snd_seq_device
soundcore 16384 1 snd
edac_mce_amd 24576 0
k10temp 16384 0
shpchp 32768 0
serio_raw 16384 0
edac_core 49152 0
i2c_piix4 20480 0
8250_fintek 16384 0
mac_hid 16384 0
binfmt_misc 20480 1
cuse 16384 3
parport_pc 32768 0
ppdev 20480 0
lp 20480 0
parport 45056 3 lp,ppdev,parport_pc
autofs4 40960 2
btrfs 1003520 0
xor 28672 1 btrfs
raid6_pq 102400 1 btrfs
dm_mirror 24576 0
dm_region_hash 20480 1 dm_mirror
dm_log 20480 2 dm_region_hash,dm_mirror
hid_generic 16384 0
usbhid 49152 0
hid 98304 2 hid_generic,usbhid
pata_acpi 16384 0
radeon 1466368 3
i2c_algo_bit 16384 1 radeon
firewire_ohci 36864 0
ttm 90112 1 radeon
drm_kms_helper 135168 1 radeon
syscopyarea 16384 1 drm_kms_helper
firewire_core 65536 1 firewire_ohci
sysfillrect 16384 1 drm_kms_helper
sysimgblt 16384 1 drm_kms_helper
crc_itu_t 16384 1 firewire_core
fb_sys_fops 16384 1 drm_kms_helper
drm 311296 6 ttm,drm_kms_helper,radeon
ahci 36864 0
pata_atiixp 16384 2
r8169 77824 0
libahci 32768 1 ahci
mii 16384 1 r8169
wmi 20480 0
floppy 61440 0
fjes 28672 0>> iwconfig
wlan0 IEEE 802.11bgn ESSID:"Neubau-WLAN-Modem"
Mode:Managed Frequency:2.462 GHz Access Point: 08:96:D7:81:8C:AF
Bit Rate=7.2 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Power Management:off
Link Quality=48/70 Signal level=-62 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:23 Missed beacon:0
>> ifconfig -a
eth0 Link encap:Ethernet HWaddr 1c:6f:65:a3:65:2a
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:635 erreurs:0 :0 overruns:0 frame:0
TX packets:635 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1
Octets reçus:52370 (52.3 KB) Octets transmis:52370 (52.3 KB)
wlan0 Link encap:Ethernet HWaddr 00:e0:4c:16:83:7b
inet adr:192.168.178.31 Bcast:192.168.178.255 Masque:255.255.255.0
adr inet6: fe80::2e0:4cff:fe16:837b/64 Scope:Lien
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Packets reçus:7137 erreurs:0 :0 overruns:0 frame:0
TX packets:6843 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:4043058 (4.0 MB) Octets transmis:1141896 (1.1 MB)
>> sudo iwlist scan
wlan0 Scan completed :
Cell 01 - Address: 08:96:D7:81:8C:AF
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=48/70 Signal level=-62 dBm
Encryption key:on
ESSID:"Neubau-WLAN-Modem"
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=0000012d922d1ec4
Extra: Last beacon: 60ms ago
IE: Unknown: 00114E65756261752D574C414E2D4D6F64656D
IE: Unknown: 010882848B960C121824
IE: Unknown: 03010B
IE: Unknown: 0706444520010D14
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: 2D1AEE111BFFFF000000000000000000008000000000000000000000
IE: Unknown: 331AEE111BFFFF000000000000000000008000000000000000000000
IE: Unknown: 3D160B080400000000000000000000000000000000000000
IE: Unknown: 34160B080400000000000000000000000000000000000000
IE: Unknown: 4A0E14000A002C01C800140005001900
IE: Unknown: 7F050100000000
IE: Unknown: DD180050F2020101010003A4000027A4000042435E0062322F00
IE: Unknown: DD0900037F01010000FF7F
IE: Unknown: DD0C00040E010102010000000000
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD6F0050F204104A0001101044000102103B0001031047001059F6344054939686AC350896D7818CAF1021000341564D1023000446426F78102400043030303010420004303030301054000800060050F20400011011000446426F78100800022788103C0001031049000600372A000120
Cell 02 - Address: 00:12:BF:C2:D3:51
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=12/70 Signal level=-98 dBm
Encryption key:on
ESSID:"Neubau-WLAN"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 6 Mb/s; 9 Mb/s
11 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=0000003c92b8bb6f
Extra: Last beacon: 60ms ago
IE: Unknown: 000B4E65756261752D574C414E
IE: Unknown: 010882848B0C12961824
IE: Unknown: 030101
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: DD180050F2020101030003A4000027A4000042435E0062322F00
>> uname -r -m
4.4.0-36-generic i686
>> 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 DÉBIT SIGNAL BARS SÉCURITÉ
* Neubau-WLAN-Modem Infra 11 54 Mo/s 64 ▂▄▆_ WPA1 WPA2
Neubau-WLAN Infra 1 54 Mo/s 4 ____ WPA1 WPA2
>> nmcli connection show
NOM UUID TYPE PÉRIPHÉRIQUE
Neubau-WLAN-Modem 09515833-4211-46e9-b336-dbf13249fb78 802-11-wireless wlan0
Connexion filaire 1 cb5a8e0f-06f3-4e99-a5be-6d957fc02f0b 802-3-ethernet --
Neubau-WLAN e4bb5d83-fbf6-453a-a4f2-d18a8e495a93 802-11-wireless --
Neubau-WLAN 1 df25da2d-8b07-4693-af5f-01ee00573257 802-11-wireless --
Neubau-WLAN-Modem 1 3ab8494f-6f45-4066-875e-beb620a6aef3 802-11-wireless --
>> sudo rfkill list
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: noDernière modification par lolcat (Le 20/09/2016, à 15:01)
Hors ligne
#2 Le 20/09/2016, à 14:54
- lolcat
Re : [Résolu] Wifi lente et aléatoire depuis mon passage en version 16.04
La solution à mon problème se trouve ici : https://forum.ubuntu-fr.org/viewtopic.php?id=1988702
J'ai suivi les instructions à la lettre et maintenant ça fonctionne du feu de Dieu! ça va presque trop vite... Nan, j'déconne!
Je passe le sujet en "résolu".
Dernière modification par lolcat (Le 20/09/2016, à 15:00)
Hors ligne