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#1 Le 28/04/2014, à 13:31
- ThomasC06
WIFI faible / Trusty
Bonjour à tous,
J'ai acquis un nouveau PC sur lequel j'ai installé Trusty.
Mon problème est que lorsque je m'éloigne un peu du freebox server (8 mètres), le réseau wifi se coupe et n'arrive plus à se reconnecter.
L'icone wifi reconnait pourtant le réseau et affiche 2 à 3 barres.
Sauriez-vous m'aider à résoudre ce problème ?
Merci beaucoup,
Thomas.
Wificheck
>> cat /etc/lsb-release
DISTRIB_ID=Ubuntu
DISTRIB_RELEASE=14.04
DISTRIB_CODENAME=trusty
DISTRIB_DESCRIPTION="Ubuntu 14.04 LTS"
>> lsusb
Bus 002 Device 002: ID 8087:8000 Intel Corp.
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 001 Device 002: ID 8087:8008 Intel Corp.
Bus 001 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 003: ID 04f2:b35a Chicony Electronics Co., Ltd
Bus 003 Device 002: ID 8087:07dc Intel Corp.
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
>> lspci -k -nn | grep -A 3 -i net
02:00.0 Network controller [0280]: Intel Corporation Wireless 7260 [8086:08b1] (rev 73)
Subsystem: Intel Corporation Wireless-N 7260 [8086:4062]
Kernel driver in use: iwlwifi
03:00.0 Unassigned class [ff00]: Realtek Semiconductor Co., Ltd. Device [10ec:5287] (rev 01)
--
03:00.1 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 12)
Subsystem: CLEVO/KAPOK Computer Device [1558:5455]
Kernel driver in use: r8169
>> sudo lshw -C network
*-network
description: Interface réseau sans fil
produit: Wireless 7260
fabriquant: Intel Corporation
identifiant matériel: 0
information bus: pci@0000:02:00.0
nom logique: wlan0
version: 73
numéro de série: fc:f8:ae:5b:7b:06
bits: 64 bits
horloge: 33MHz
fonctionnalités: pm msi pciexpress bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=3.13.0-24-generic firmware=22.24.8.0 ip=192.168.1.21 latency=0 link=yes multicast=yes wireless=IEEE 802.11bgn
ressources: irq:45 mémoire:f7d00000-f7d01fff
*-network
description: Ethernet interface
produit: RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller
fabriquant: Realtek Semiconductor Co., Ltd.
identifiant matériel: 0.1
information bus: pci@0000:03:00.1
nom logique: eth0
version: 12
numéro de série: 00:90:f5:f5:20:43
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=rtl8411-2_0.0.1 07/08/13 latency=0 link=no multicast=yes port=MII speed=10Mbit/s
ressources: irq:43 portE/S:e000(taille=256) mémoire:f7c14000-f7c14fff mémoire:f7c10000-f7c13fff
>> lsmod
Module Size Used by
ctr 13049 3
ccm 17773 3
hidp 23870 0
hid 106148 1 hidp
cuse 13445 3
snd_hda_codec_realtek 61438 1
snd_hda_codec_hdmi 46207 1
joydev 17381 0
bnep 19624 2
rfcomm 69160 8
x86_pkg_temp_thermal 14205 0
intel_powerclamp 14705 0
coretemp 13435 0
arc4 12608 2
kvm_intel 143060 0
kvm 451511 1 kvm_intel
crct10dif_pclmul 14289 0
crc32_pclmul 13113 0
binfmt_misc 17468 1
ghash_clmulni_intel 13259 0
cryptd 20359 1 ghash_clmulni_intel
psmouse 102222 0
uvcvideo 80885 0
videobuf2_vmalloc 13216 1 uvcvideo
serio_raw 13462 0
videobuf2_memops 13362 1 videobuf2_vmalloc
btusb 32412 0
videobuf2_core 40664 1 uvcvideo
videodev 134688 2 uvcvideo,videobuf2_core
iwlmvm 189774 0
mac80211 626489 1 iwlmvm
rtsx_pci_ms 18151 0
memstick 16966 1 rtsx_pci_ms
bluetooth 395423 23 bnep,hidp,btusb,rfcomm
lpc_ich 21080 0
iwlwifi 169932 1 iwlmvm
cfg80211 484040 3 iwlwifi,mac80211,iwlmvm
snd_hda_intel 52355 5
snd_hda_codec 192906 3 snd_hda_codec_realtek,snd_hda_codec_hdmi,snd_hda_intel
snd_hwdep 13602 1 snd_hda_codec
snd_pcm 102099 3 snd_hda_codec_hdmi,snd_hda_codec,snd_hda_intel
wmi 19177 0
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
i915 783485 6
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
parport_pc 32701 0
drm_kms_helper 52758 1 i915
video 19476 1 i915
snd 69238 21 snd_hda_codec_realtek,snd_hwdep,snd_timer,snd_hda_codec_hdmi,snd_pcm,snd_seq,snd_rawmidi,snd_hda_codec,snd_hda_intel,snd_seq_device,snd_seq_midi
ppdev 17671 0
mac_hid 13205 0
drm 302817 5 i915,drm_kms_helper
mei_me 18627 0
mei 82274 1 mei_me
lp 17759 0
parport 42348 3 lp,ppdev,parport_pc
i2c_algo_bit 13413 1 i915
soundcore 12680 1 snd
rtsx_pci_sdmmc 23274 0
r8169 67581 0
rtsx_pci 45956 2 rtsx_pci_ms,rtsx_pci_sdmmc
mii 13934 1 r8169
ahci 25819 2
libahci 32168 1 ahci>> iwconfig
wlan0 IEEE 802.11bgn ESSID:"THOMAS"
Mode:Managed Frequency:2.412 GHz Access Point: F4:CA:E5:D4:2A:B0
Bit Rate=72.2 Mb/s Tx-Power=16 dBm
Retry long limit:7 RTS thr:off Fragment thr:off
Power Management:on
Link Quality=70/70 Signal level=-37 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:51 Missed beacon:0
>> ifconfig -a
eth0 Link encap:Ethernet HWaddr 00:90:f5:f5:20:43
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:9621 erreurs:0 :0 overruns:0 frame:0
TX packets:9621 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:0
Octets reçus:840190 (840.1 KB) Octets transmis:840190 (840.1 KB)
wlan0 Link encap:Ethernet HWaddr fc:f8:ae:5b:7b:06
inet adr:192.168.1.21 Bcast:192.168.1.255 Masque:255.255.255.0
adr inet6: 2a01:e35:8bb2:3790:fef8:aeff:fe5b:7b06/64 Scope:Global
adr inet6: fe80::fef8:aeff:fe5b:7b06/64 Scope:Lien
adr inet6: 2a01:e35:8bb2:3790:987e:c0d6:61a:74b3/64 Scope:Global
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
Packets reçus:712498 erreurs:0 :0 overruns:0 frame:0
TX packets:628316 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 lg file transmission:1000
Octets reçus:640312053 (640.3 MB) Octets transmis:219670184 (219.6 MB)
>> sudo iwlist scan
wlan0 Scan completed :
Cell 01 - Address: F4:CA:E5:D4:2A:B0
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=70/70 Signal level=-35 dBm
Encryption key:on
ESSID:"THOMAS"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s
6 Mb/s; 9 Mb/s; 12 Mb/s
Bit Rates:18 Mb/s; 24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=000000529d5034f9
Extra: Last beacon: 28ms ago
IE: Unknown: 000654484F4D4153
IE: Unknown: 010882848B962C0C1218
IE: Unknown: 030101
IE: Unknown: 2A0104
IE: Unknown: 3205243048606C
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 2D1A6C0003FFFFFF0001000000000000000100000000000000000000
IE: Unknown: 3D1601000400000000000000000000000000000000000000
IE: Unknown: 7F080000000000000040
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
Cell 02 - Address: F4:CA:E5:D4:2A:B1
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=70/70 Signal level=-34 dBm
Encryption key:off
ESSID:"FreeWifi"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s
6 Mb/s; 9 Mb/s; 12 Mb/s
Bit Rates:18 Mb/s; 24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=000000529d4fbd3e
Extra: Last beacon: 28ms ago
IE: Unknown: 00084672656557696669
IE: Unknown: 010882848B962C0C1218
IE: Unknown: 030101
IE: Unknown: 2A0104
IE: Unknown: 3205243048606C
IE: Unknown: 2D1A6C0003FFFFFF0001000000000000000100000000000000000000
IE: Unknown: 3D1601000400000000000000000000000000000000000000
IE: Unknown: 7F080000000000000040
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
Cell 03 - Address: F4:CA:E5:D4:2A:B2
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=70/70 Signal level=-30 dBm
Encryption key:on
ESSID:"FreeWifi_secure"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 22 Mb/s
6 Mb/s; 9 Mb/s; 12 Mb/s
Bit Rates:18 Mb/s; 24 Mb/s; 36 Mb/s; 48 Mb/s; 54 Mb/s
Mode:Master
Extra:tsf=000000529d4e9efc
Extra: Last beacon: 28ms ago
IE: Unknown: 000F46726565576966695F736563757265
IE: Unknown: 010882848B962C0C1218
IE: Unknown: 030101
IE: Unknown: 2A0104
IE: Unknown: 3205243048606C
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : 802.1x
IE: Unknown: 2D1A6C0003FFFFFF0001000000000000000100000000000000000000
IE: Unknown: 3D1601000400000000000000000000000000000000000000
IE: Unknown: 7F080000000000000040
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
Cell 04 - Address: F4:CA:E5:8A:70:41
Channel:8
Frequency:2.447 GHz (Channel 8)
Quality=41/70 Signal level=-69 dBm
Encryption key:off
ESSID:"FreeWifi"
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=000004919f29d67f
Extra: Last beacon: 28ms ago
IE: Unknown: 00084672656557696669
IE: Unknown: 010882848B960C121824
IE: Unknown: 030108
IE: Unknown: 2A0104
IE: Unknown: 32043048606C
IE: Unknown: 2D1A6C0003FFFFFF0001000000000000000100000000000000000000
IE: Unknown: 3D1608000000000000000000000000000000000000000000
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
Cell 05 - Address: F4:CA:E5:8A:70:42
Channel:8
Frequency:2.447 GHz (Channel 8)
Quality=40/70 Signal level=-70 dBm
Encryption key:on
ESSID:"FreeWifi_secure"
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=000004919f295e84
Extra: Last beacon: 28ms ago
IE: Unknown: 000F46726565576966695F736563757265
IE: Unknown: 010882848B960C121824
IE: Unknown: 030108
IE: Unknown: 2A0104
IE: Unknown: 32043048606C
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : 802.1x
IE: Unknown: 2D1A6C0003FFFFFF0001000000000000000100000000000000000000
IE: Unknown: 3D1608000000000000000000000000000000000000000000
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
Cell 06 - Address: F4:CA:E5:8A:70:40
Channel:8
Frequency:2.447 GHz (Channel 8)
Quality=41/70 Signal level=-69 dBm
Encryption key:on
ESSID:"Freebox-5D8979"
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=000004919f2a4d7a
Extra: Last beacon: 28ms ago
IE: Unknown: 000E46726565626F782D354438393739
IE: Unknown: 010882848B960C121824
IE: Unknown: 030108
IE: Unknown: 2A0104
IE: Unknown: 32043048606C
IE: WPA Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 2D1A6C0003FFFFFF0001000000000000000100000000000000000000
IE: Unknown: 3D1608000000000000000000000000000000000000000000
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
>> uname -r -m
3.13.0-24-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
NetworkManager Tool
State: connected (global)
- Device: 94:EB:CD:C7:E3:55 ----------------------------------------------------
Type: Bluetooth
Driver: bluez
State: disconnected
Default: no
Capabilities:
- Device: eth0 -----------------------------------------------------------------
Type: Wired
Driver: r8169
State: unavailable
Default: no
HW Address: 00:90:F5:F5:20:43
Capabilities:
Carrier Detect: yes
Wired Properties
Carrier: off
- Device: wlan0 [THOMAS] ------------------------------------------------------
Type: 802.11 WiFi
Driver: iwlwifi
State: connected
Default: yes
HW Address: FC:F8:AE:5B:7B:06
Capabilities:
Speed: 144 Mb/s
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points (* = current AP)
FreeWifi_secure: Infra, F4:CA:E5:D4:2A:B2, Freq 2412 MHz, Rate 54 Mb/s, Strength 79 WPA2 Enterprise
FreeWifi_secure: Infra, F4:CA:E5:8A:70:42, Freq 2447 MHz, Rate 54 Mb/s, Strength 27 WPA2 Enterprise
Freebox-5D8979: Infra, F4:CA:E5:8A:70:40, Freq 2447 MHz, Rate 54 Mb/s, Strength 27 WPA
FreeWifi: Infra, F4:CA:E5:D4:2A:B1, Freq 2412 MHz, Rate 54 Mb/s, Strength 79
FreeWifi: Infra, F4:CA:E5:8A:70:41, Freq 2447 MHz, Rate 54 Mb/s, Strength 25
*THOMAS: Infra, F4:CA:E5:D4:2A:B0, Freq 2412 MHz, Rate 54 Mb/s, Strength 80 WPA2
SFR_AAB0: Infra, 30:7E:CB:72:AA:B4, Freq 2437 MHz, Rate 54 Mb/s, Strength 20 WPA
SFR WiFi FON: Infra, 62:7E:CB:72:AA:B5, Freq 2437 MHz, Rate 54 Mb/s, Strength 14
IPv4 Settings:
Address: 192.168.1.21
Prefix: 24 (255.255.255.0)
Gateway: 192.168.1.254
DNS: 192.168.1.254
IPv6 Settings:
Address: 2a01:e35:8bb2:3790:987e:c0d6:61a:74b3
Prefix: 64
Gateway: fe80::f6ca:e5ff:fe4f:1aad
Address: 2a01:e35:8bb2:3790:fef8:aeff:fe5b:7b06
Prefix: 64
Gateway: fe80::f6ca:e5ff:fe4f:1aad
Address: fe80::fef8:aeff:fe5b:7b06
Prefix: 64
Gateway: fe80::f6ca:e5ff:fe4f:1aad
DNS: 2a01:e00::2
DNS: 2a01:e00::1
>> sudo rfkill list
0: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: noHors ligne
#2 Le 30/04/2014, à 10:14
- Lomi
Re : WIFI faible / Trusty
Es-tu certain que le problème vient d'Ubuntu ?
Il y a d'autres possibilités comme par exemple :
-antenne Wifi du PC défaillante
-Canal Wifi encombré
..
Comment est configuré ta Freebox ?
#3 Le 02/01/2015, à 21:31
- jpn2605
Re : WIFI faible / Trusty
Je viens d'observer le même problème (chipset WIfi Intel 7260, Kubuntu 14.04 sur PC portable LDLC 14 pouces de cet été).
Lorsque je m'éloigne de la source, un même test de débit m'indique un résultat nettement inférieur sous Kubuntu par rapport à Windiws 7 (dual boot, même PC) : un facteur 2 au-delà de 8 mètres !
Hors ligne
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