Pages : 1
#1 Le 24/08/2010, à 12:58
- ipaul
[résolu] wifi instable Intel WiFi Link 5100
Bonjour à tous,
J'ai déjà eu un problème avec ma connexion wifi http://forum.ubuntu-fr.org/viewtopic.php?id=397355. Je n'ai pas trouvé de solution, j'ai alors réinstaller ubuntu 10.04, ce qui a temporairement résolu mon problème. Mais voilà que mon wifi redevient instable, il se déconnecte intempestivement, et très souvent il n'y a plus de débit, ce qui fait que le délai d'affichage des pages web est dépassé. Je suis sur un dell inspiron avec une carte intel wifi link 5100. Quelqu'un peut-il m'éclairer sur cette dégradation de ma connexion wifi?
ipaul
cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=10.04
DISTRIB_CODENAME=lucid
DISTRIB_DESCRIPTION="Ubuntu 10.04.1 LTS"lsusb
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 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
Bus 002 Device 004: ID 05ac:1292 Apple, Inc. iPhone 3G
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 003: ID 0c45:63ee Microdia
Bus 001 Device 002: ID 0bda:0158 Realtek Semiconductor Corp. Mass Storage Device
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hublspci
00:00.0 Host bridge: Intel Corporation Mobile 4 Series Chipset Memory Controller Hub (rev 07)
00:01.0 PCI bridge: Intel Corporation Mobile 4 Series Chipset PCI Express Graphics Port (rev 07)
00:1a.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #4 (rev 03)
00:1a.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #5 (rev 03)
00:1a.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #6 (rev 03)
00:1a.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #2 (rev 03)
00:1b.0 Audio device: Intel Corporation 82801I (ICH9 Family) HD Audio Controller (rev 03)
00:1c.0 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 1 (rev 03)
00:1c.1 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 2 (rev 03)
00:1c.2 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 3 (rev 03)
00:1c.4 PCI bridge: Intel Corporation 82801I (ICH9 Family) PCI Express Port 5 (rev 03)
00:1d.0 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #1 (rev 03)
00:1d.1 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #2 (rev 03)
00:1d.2 USB Controller: Intel Corporation 82801I (ICH9 Family) USB UHCI Controller #3 (rev 03)
00:1d.7 USB Controller: Intel Corporation 82801I (ICH9 Family) USB2 EHCI Controller #1 (rev 03)
00:1e.0 PCI bridge: Intel Corporation 82801 Mobile PCI Bridge (rev 93)
00:1f.0 ISA bridge: Intel Corporation ICH9M LPC Interface Controller (rev 03)
00:1f.2 SATA controller: Intel Corporation ICH9M/M-E SATA AHCI Controller (rev 03)
00:1f.3 SMBus: Intel Corporation 82801I (ICH9 Family) SMBus Controller (rev 03)
01:00.0 VGA compatible controller: ATI Technologies Inc M92 LP [Mobility Radeon HD 4300 Series]
09:00.0 Ethernet controller: Marvell Technology Group Ltd. 88E8040 PCI-E Fast Ethernet Controller (rev 13)
0c:00.0 Network controller: Intel Corporation Wireless WiFi Link 5100lspci -nn | grep -i net
09:00.0 Ethernet controller [0200]: Marvell Technology Group Ltd. 88E8040 PCI-E Fast Ethernet Controller [11ab:4354] (rev 13)
0c:00.0 Network controller [0280]: Intel Corporation Wireless WiFi Link 5100 [8086:4232]sudo lshw -C network
*-network
description: Wireless interface
product: Wireless WiFi Link 5100
vendor: Intel Corporation
physical id: 0
bus info: pci@0000:0c:00.0
logical name: wlan0
version: 00
serial: 00:24:d6:0b:49:c6
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlagn ip=192.168.0.14 latency=0 multicast=yes wireless=IEEE 802.11abgn
resources: irq:31 memory:f6cfe000-f6cfffff
*-network
description: Ethernet interface
product: 88E8040 PCI-E Fast Ethernet Controller
vendor: Marvell Technology Group Ltd.
physical id: 0
bus info: pci@0000:09:00.0
logical name: eth0
version: 13
serial: 00:25:64:5e:21:46
capacity: 100MB/s
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress bus_master cap_list ethernet physical tp 10bt 10bt-fd 100bt 100bt-fd autonegotiation
configuration: autonegotiation=on broadcast=yes driver=sky2 driverversion=1.25 firmware=N/A latency=0 link=no multicast=yes port=twisted pair
resources: irq:30 memory:f6bfc000-f6bfffff ioport:ce00(size=256)lsmod
Module Size Used by
cryptd 8116 0
aes_x86_64 7912 1
aes_generic 27607 1 aes_x86_64
binfmt_misc 7960 1
ppdev 6375 0
joydev 11072 0
snd_hda_codec_idt 61450 1
arc4 1473 2
dell_wmi 2177 0
iwlagn 121641 0
snd_hda_intel 25677 2
snd_hda_codec 85759 2 snd_hda_codec_idt,snd_hda_intel
snd_hwdep 6924 1 snd_hda_codec
snd_pcm_oss 41394 0
snd_mixer_oss 16299 1 snd_pcm_oss
iwlcore 124955 1 iwlagn
led_class 3764 1 iwlcore
snd_pcm 87882 3 snd_hda_intel,snd_hda_codec,snd_pcm_oss
snd_seq_dummy 1782 0
snd_seq_oss 31219 0
snd_seq_midi 5829 0
snd_rawmidi 23420 1 snd_seq_midi
snd_seq_midi_event 7267 2 snd_seq_oss,snd_seq_midi
snd_seq 57481 6 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_seq_midi_event
snd_timer 23649 2 snd_pcm,snd_seq
snd_seq_device 6888 5 snd_seq_dummy,snd_seq_oss,snd_seq_midi,snd_rawmidi,snd_seq
dell_laptop 7941 0
uvcvideo 62467 0
videodev 40518 1 uvcvideo
snd 71106 16 snd_hda_codec_idt,snd_hda_intel,snd_hda_codec,snd_hwdep,snd_pcm_oss,snd_mixer_oss,snd_pcm,snd_seq_oss,snd_rawmidi,snd_seq,snd_timer,snd_seq_device
fbcon 39270 71
tileblit 2487 1 fbcon
font 8053 1 fbcon
bitblit 5811 1 fbcon
softcursor 1565 1 bitblit
mac80211 238448 2 iwlagn,iwlcore
v4l1_compat 15495 2 uvcvideo,videodev
v4l2_compat_ioctl32 12020 1 videodev
dcdbas 6886 1 dell_laptop
video 20623 0
output 2503 1 video
psmouse 64576 0
serio_raw 4918 0
fglrx 2353422 29
vga16fb 12757 1
vgastate 9857 1 vga16fb
cfg80211 148546 3 iwlagn,iwlcore,mac80211
soundcore 8052 1 snd
snd_page_alloc 8500 2 snd_hda_intel,snd_pcm
intel_agp 29095 0
lp 9336 0
parport 37160 2 ppdev,lp
usb_storage 49833 0
sky2 48803 0
ahci 37870 3iwconfig
lo no wireless extensions.
eth0 no wireless extensions.
wlan0 IEEE 802.11abgn ESSID:"freebox_BUNCXB"
Mode:Managed Frequency:2.412 GHz Access Point: 16:10:18:47:F2:4C
Bit Rate=2 Mb/s Tx-Power=15 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:off
Link Quality=33/70 Signal level=-77 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:0 Missed beacon:0ifconfig
eth0 Link encap:Ethernet HWaddr 00:25:64:5e:21:46
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:18
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:16436 Metric:1
Packets reçus:654 erreurs:0 :0 overruns:0 frame:0
TX packets:654 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:0
Octets reçus:52041 (52.0 KB) Octets transmis:52041 (52.0 KB)
wlan0 Link encap:Ethernet HWaddr 00:24:d6:0b:49:c6
inet adr:192.168.0.14 Bcast:192.168.0.255 Masque:255.255.255.0
adr inet6: fe80::224:d6ff:fe0b:49c6/64 Scope:Lien
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Packets reçus:34175 erreurs:0 :0 overruns:0 frame:0
TX packets:23216 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:45183770 (45.1 MB) Octets transmis:3046896 (3.0 MB)sudo iwlist scan
lo Interface doesn't support scanning.
eth0 Interface doesn't support scanning.
wlan0 Scan completed :
Cell 01 - Address: 16:10:18:47:F2:4C
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=34/70 Signal level=-76 dBm
Encryption key:on
ESSID:"freebox_BUNCXB"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
18 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000021eb7b02132
Extra: Last beacon: 90ms ago
IE: Unknown: 000E66726565626F785F42554E435842
IE: Unknown: 010882848B961224486C
IE: Unknown: 030101
IE: Unknown: 2A0104
IE: Unknown: 32040C183060
IE: Unknown: 2D1A6E1017FFFF000001000000000000000000000000000000000000
IE: Unknown: 3D1601050700000000000000000000000000000000000000
IE: Unknown: 3E0100
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : TKIP CCMP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
IE: Unknown: 7F0101
IE: Unknown: DD07000C4300000000
IE: Unknown: DD1E00904C336E1017FFFF000001000000000000000000000000000000000000
IE: Unknown: DD1A00904C3401050700000000000000000000000000000000000000
Cell 02 - Address: 16:10:18:47:F2:4E
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=39/70 Signal level=-71 dBm
Encryption key:off
ESSID:"FreeWifi"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
18 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000021eb6dab383
Extra: Last beacon: 14080ms ago
IE: Unknown: 00084672656557696669
IE: Unknown: 010882848B961224486C
IE: Unknown: 030101
IE: Unknown: 2A0104
IE: Unknown: 32040C183060
IE: Unknown: 2D1A6E1017FFFF000001000000000000000000000000000000000000
IE: Unknown: 3D1601050700000000000000000000000000000000000000
IE: Unknown: 3E0100
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
IE: Unknown: 7F0101
IE: Unknown: DD07000C4300000000
IE: Unknown: DD1E00904C336E1017FFFF000001000000000000000000000000000000000000
IE: Unknown: DD1A00904C3401050700000000000000000000000000000000000000
Cell 03 - Address: 16:10:18:47:F2:4F
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=39/70 Signal level=-71 dBm
Encryption key:on
ESSID:"freephonie"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 9 Mb/s
18 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 12 Mb/s; 24 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000021eb6dabd31
Extra: Last beacon: 14080ms ago
IE: Unknown: 000A6672656570686F6E6965
IE: Unknown: 010882848B961224486C
IE: Unknown: 030101
IE: Unknown: 2A0104
IE: Unknown: 32040C183060
IE: Unknown: 2D1A6E1017FFFF000001000000000000000000000000000000000000
IE: Unknown: 3D1601050700000000000000000000000000000000000000
IE: Unknown: 3E0100
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : 802.1x
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
IE: Unknown: 7F0101
IE: Unknown: DD07000C4300000000
IE: Unknown: DD1E00904C336E1017FFFF000001000000000000000000000000000000000000
IE: Unknown: DD1A00904C3401050700000000000000000000000000000000000000uname -r -m
2.6.32-24-generic x86_64cat /etc/network/interfaces
auto lo
iface lo inet loopbacknm-tool
NetworkManager Tool
State: connected
- Device: wlan0 [Auto freebox_BUNCXB] -----------------------------------------
Type: 802.11 WiFi
Driver: iwlagn
State: connected
Default: yes
HW Address: 00:24:D6:0B:49:C6
Capabilities:
Speed: 1 Mb/s
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points (* = current AP)
medical: Infra, 00:15:70:7A:4A:C9, Freq 2412 MHz, Rate 54 Mb/s, Strength 31 WPA WPA2
*freebox_BUNCXB: Infra, 16:10:18:47:F2:4C, Freq 2412 MHz, Rate 54 Mb/s, Strength 51 WPA
FreeWifi: Infra, 16:10:18:47:F2:4E, Freq 2412 MHz, Rate 54 Mb/s, Strength 51
freephonie: Infra, 16:10:18:47:F2:4F, Freq 2412 MHz, Rate 54 Mb/s, Strength 47 WPA Enterprise
IPv4 Settings:
Address: 192.168.0.14
Prefix: 24 (255.255.255.0)
Gateway: 192.168.0.254
DNS: 212.27.40.240
DNS: 212.27.40.241
- Device: eth0 -----------------------------------------------------------------
Type: Wired
Driver: sky2
State: unavailable
Default: no
HW Address: 00:25:64:5E:21:46
Capabilities:
Carrier Detect: yes
Wired Properties
Carrier: offDernière modification par ipaul (Le 24/04/2012, à 13:17)
Hors ligne
#2 Le 24/08/2010, à 17:30
- ipaul
Re : [résolu] wifi instable Intel WiFi Link 5100
up
Hors ligne
#3 Le 01/09/2010, à 14:24
- ipaul
Re : [résolu] wifi instable Intel WiFi Link 5100
up
Hors ligne
#4 Le 24/04/2012, à 08:04
- ipaul
Re : [résolu] wifi instable Intel WiFi Link 5100
finalement j'ai trouvé la solution :
http://askubuntu.com/questions/66810/ve … k-5100-agn
There is a problem with kernel 3.0.0.x and Intel wifi under 802.11n.
We are all waiting for the fix in the kernel.
There is a workaround:
Create a file /etc/modprobe.d/intel_11n_disable.conf containing :
options iwlagn 11n_disable=1
sudo update-initramfs -ureboot or
sudo modprobe -r iwlagn && sudo modprobe iwlagnDernière modification par ipaul (Le 27/04/2012, à 00:03)
Hors ligne
#5 Le 27/04/2012, à 00:02
- ipaul
Re : [résolu] wifi instable Intel WiFi Link 5100
update :
Avec le passage à ubuntu 12.04 le driver a changer c'est désormais iwlwifi. Voici les commandes pour désactiver la norme n de la carte wifi intel :
The solution is similar but it needs to use iwlwifi.conf and the value must be set to 1.
From terminal
Code:
sudo gedit /etc/modprobe.d/iwlwifi.confThen add this line
Code:
options iwlwifi 11n_disable=1Finally from terminal restart iwlwifi
Code:
sudo modprobe -r iwlwifi
sudo modprobe iwlwifiHors ligne
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