J'ai installé Ubuntu 14.04 sur mon ordinateur de bureau et j'ai maintenant des problèmes avec la connexion WiFi. Après chaque redémarrage, il fonctionne parfaitement, mais quelques temps plus tard, il ne fonctionne plus. Parfois il se rétablit, parfois non. Au début, j'ai pu la redémarrer en cliquant sur l'icône du lanceur de connexion WiFi et en me reconnectant. Mais ensuite j'ai cherché sur internet et j'ai trouvé ces 2 solutions de contournement :
echo "options iwlwifi 11n_disable=1" | sudo tee /etc/modprobe.d/iwlwifi.conf
sudo modprobe -rfv iwlwifi
sudo modprobe -v iwlwifiy
sudo -i
echo "options rtl8723be fwlps=0" > /etc/modprobe.d/rtl8723be.conf
modprobe -r rtl8723be
modprobe rtl8723be
exitJ'ai fait les deux et maintenant je ne peux plus me reconnecter en cliquant sur l'icône, je dois redémarrer le PC. J'ai trouvé ceci pour redémarrer la connexion sans redémarrer :
sudo service network-manager restartVoici la sortie de wireless info script :
########## wireless info START ##########
Report from: 15 Aug 2015 15:58 EEST +0300
Booted last: 15 Aug 2015 15:49 EEST +0300
Script from: 14 Jul 2015 17:04 UTC +0000
##### release ###########################
Distributor ID: Ubuntu
Description: Ubuntu 14.04.3 LTS
Release: 14.04
Codename: trusty
##### kernel ############################
Linux 3.16.0-45-generic #60~14.04.1-Ubuntu SMP Fri Jul 24 21:16:23 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux
Parameters: ro, quiet, splash, vt.handoff=7
##### desktop ###########################
Ubuntu
##### lspci #############################
02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 06)
Subsystem: ASUSTeK Computer Inc. P8P67 and other motherboards [1043:8432]
Kernel driver in use: r8169
##### lsusb #############################
Bus 003 Device 002: ID 0781:5572 SanDisk Corp.
Bus 003 Device 001: ID 1d6b:0002 Linux Foundation 2.0 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 002 Device 002: ID 0bda:8178 Realtek Semiconductor Corp. RTL8192CU 802.11n WLAN Adapter
Bus 002 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 005 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
Bus 004 Device 003: ID 04f3:0103 Elan Microelectronics Corp. ActiveJet K-2024 Multimedia Keyboard
Bus 004 Device 002: ID 2188:0ae1
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Bus 009 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub
Bus 008 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub
##### PCMCIA card info ##################
##### rfkill ############################
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
##### lsmod #############################
rtl8192cu 67741 0
rtl_usb 18448 1 rtl8192cu
rtlwifi 64255 2 rtl_usb,rtl8192cu
rtl8192c_common 53172 1 rtl8192cu
mac80211 652777 3 rtl_usb,rtlwifi,rtl8192cu
cfg80211 498458 2 mac80211,rtlwifi
eeepc_wmi 13151 0
asus_wmi 24094 1 eeepc_wmi
sparse_keymap 13948 1 asus_wmi
video 20128 1 asus_wmi
wmi 19193 1 asus_wmi
##### interfaces ########################
auto lo
iface lo inet loopback
##### ifconfig ##########################
eth0 Link encap:Ethernet HWaddr <MAC 'eth0' [IF]>
UP BROADCAST MULTICAST MTU:1500 Metric:1
RX packets:0 errors:0 dropped:0 overruns:0 frame:0
TX packets:0 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:0 (0.0 B) TX bytes:0 (0.0 B)
wlan0 Link encap:Ethernet HWaddr <MAC 'wlan0' [IF]>
inet addr:192.168.1.102 Bcast:192.168.1.255 Mask:255.255.255.0
inet6 addr: fe80::<IP6 'wlan0' [IF]>/64 Scope:Link
UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1
RX packets:6127 errors:0 dropped:0 overruns:0 frame:0
TX packets:5181 errors:0 dropped:0 overruns:0 carrier:0
collisions:0 txqueuelen:1000
RX bytes:4296934 (4.2 MB) TX bytes:785909 (785.9 KB)
##### iwconfig ##########################
eth0 no wireless extensions.
lo no wireless extensions.
wlan0 IEEE 802.11bgn ESSID:"krasota"
Mode:Managed Frequency:2.412 GHz Access Point: <MAC 'krasota' [AC1]>
Bit Rate=150 Mb/s Tx-Power=20 dBm
Retry short limit:7 RTS thr=2347 B Fragment thr:off
Power Management:off
Link Quality=54/70 Signal level=-56 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:5 Missed beacon:0
##### route #############################
Kernel IP routing table
Destination Gateway Genmask Flags Metric Ref Use Iface
0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 wlan0
192.168.1.0 0.0.0.0 255.255.255.0 U 9 0 0 wlan0
##### resolv.conf #######################
nameserver 127.0.1.1
##### network managers ##################
Installed:
NetworkManager
Running:
root 862 1 0 15:49 ? 00:00:00 NetworkManager
##### NetworkManager info ###############
NetworkManager Tool
State: connected (global)
- Device: wlan0 [krasota] -----------------------------------------------------
Type: 802.11 WiFi
Driver: rtl8192cu
State: connected
Default: yes
HW Address: <MAC 'wlan0' [IF]>
Capabilities:
Speed: 150 Mb/s
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points (* = current AP)
Keenetic-0134: Infra, <MAC 'Keenetic-0134' [AC2]>, Freq 2422 MHz, Rate 54 Mb/s, Strength 87 WPA2
Soti: Infra, <MAC 'Soti' [AC4]>, Freq 2452 MHz, Rate 54 Mb/s, Strength 54 WPA WPA2
nexus: Infra, <MAC 'nexus' [AC3]>, Freq 2437 MHz, Rate 54 Mb/s, Strength 20 WPA WPA2
RAMSA: Infra, <MAC 'RAMSA' [AN4]>, Freq 2432 MHz, Rate 54 Mb/s, Strength 4 WPA2
Lanet: Infra, <MAC 'Lanet' [AN5]>, Freq 2452 MHz, Rate 54 Mb/s, Strength 4 WPA WPA2
volia 30 2: Infra, <MAC 'volia 30 2' [AN6]>, Freq 2437 MHz, Rate 54 Mb/s, Strength 4 WEP
mimimishka: Infra, <MAC 'mimimishka' [AN7]>, Freq 2457 MHz, Rate 54 Mb/s, Strength 4 WPA2
EVA BRAUN: Infra, <MAC 'EVA BRAUN' [AN8]>, Freq 2462 MHz, Rate 54 Mb/s, Strength 4 WPA2
*krasota: Infra, <MAC 'krasota' [AC1]>, Freq 2412 MHz, Rate 54 Mb/s, Strength 60 WPA WPA2
putinKHUYLO: Infra, <MAC 'putinKHUYLO' [AN10]>, Freq 2462 MHz, Rate 54 Mb/s, Strength 4 WPA WPA2
IPv4 Settings:
Address: 192.168.1.102
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
HW Address: <MAC 'eth0' [IF]>
Capabilities:
Carrier Detect: yes
Wired Properties
Carrier: off
##### NetworkManager.state ##############
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
##### NetworkManager.conf ###############
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=false
##### NetworkManager profiles ###########
[[/etc/NetworkManager/system-connections/mimimishka]] (600 root)
[connection] id=mimimishka | type=802-11-wireless
[802-11-wireless] ssid=mimimishka | mac-address=<MAC 'wlan0' [IF]>
[ipv4] method=auto
[ipv6] method=auto
[[/etc/NetworkManager/system-connections/krasota]] (600 root)
[connection] id=krasota | type=802-11-wireless
[802-11-wireless] ssid=krasota | mac-address=<MAC 'wlan0' [IF]>
[ipv4] method=auto
[ipv6] method=auto
##### iw reg get ########################
Region: Europe/Kiev (based on set time zone)
country UA:
(2400 - 2483 @ 40), (N/A, 20), NO-OUTDOOR
(5150 - 5350 @ 40), (N/A, 20), NO-OUTDOOR
(57240 - 65880 @ 2160), (N/A, 40), NO-OUTDOOR
##### iwlist channels ###################
eth0 no frequency information.
lo no frequency information.
wlan0 11 channels in total; available frequencies :
Channel 01 : 2.412 GHz
Channel 02 : 2.417 GHz
Channel 03 : 2.422 GHz
Channel 04 : 2.427 GHz
Channel 05 : 2.432 GHz
Channel 06 : 2.437 GHz
Channel 07 : 2.442 GHz
Channel 08 : 2.447 GHz
Channel 09 : 2.452 GHz
Channel 10 : 2.457 GHz
Channel 11 : 2.462 GHz
Current Frequency:2.412 GHz (Channel 1)
##### iwlist scan #######################
eth0 Interface doesn't support scanning.
lo Interface doesn't support scanning.
Channel occupancy:
1 APs on Frequency:2.412 GHz (Channel 1)
1 APs on Frequency:2.422 GHz (Channel 3)
1 APs on Frequency:2.437 GHz (Channel 6)
1 APs on Frequency:2.452 GHz (Channel 9)
wlan0 Scan completed :
Cell 01 - Address: <MAC 'krasota' [AC1]>
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=52/70 Signal level=-58 dBm
Encryption key:on
ESSID:"krasota"
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=00000002b8d0fe19
Extra: Last beacon: 84ms ago
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
Cell 02 - Address: <MAC 'Keenetic-0134' [AC2]>
Channel:3
Frequency:2.422 GHz (Channel 3)
Quality=48/70 Signal level=-62 dBm
Encryption key:on
ESSID:"Keenetic-0134"
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=00000649a2dad2ce
Extra: Last beacon: 84ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Cell 03 - Address: <MAC 'nexus' [AC3]>
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=12/70 Signal level=-98 dBm
Encryption key:on
ESSID:"nexus"
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=000001a689e7a006
Extra: Last beacon: 84ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: WPA Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
Cell 04 - Address: <MAC 'Soti' [AC4]>
Channel:9
Frequency:2.452 GHz (Channel 9)
Quality=42/70 Signal level=-68 dBm
Encryption key:on
ESSID:"Soti"
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=0000000185dbcfac
Extra: Last beacon: 84ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: WPA Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
##### module infos ######################
[rtl8192cu]
filename: /lib/modules/3.16.0-45-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192cu/rtl8192cu.ko
firmware: rtlwifi/rtl8192cufw_TMSC.bin
firmware: rtlwifi/rtl8192cufw_B.bin
firmware: rtlwifi/rtl8192cufw_A.bin
firmware: rtlwifi/rtl8192cufw.bin
description: Realtek 8192C/8188C 802.11n USB wireless
license: GPL
author: Larry Finger <Larry.Finger@lwfinger.net>
author: Ziv Huang <ziv_huang@realtek.com>
author: Georgia <georgia@realtek.com>
srcversion: 93FD064658D2AD5B6991075
depends: rtlwifi,rtl8192c-common,rtl_usb,mac80211
intree: Y
vermagic: 3.16.0-45-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: C1:A3:1E:DB:9F:C4:C6:4E:2D:95:A7:FF:18:A6:73:D1:8C:AB:15:A6
sig_hashalgo: sha512
parm: swenc:Set to 1 for software crypto (default 0)
(bool)
parm: debug:Set debug level (0-5) (default 0) (int)
[rtl_usb]
filename: /lib/modules/3.16.0-45-generic/kernel/drivers/net/wireless/rtlwifi/rtl_usb.ko
description: USB basic driver for rtlwifi
license: GPL
author: Larry Finger <Larry.FInger@lwfinger.net>
author: Realtek WlanFAE <wlanfae@realtek.com>
author: lizhaoming <chaoming_li@realsil.com.cn>
srcversion: 94CFED30E3318E18EC4B740
depends: rtlwifi,mac80211
intree: Y
vermagic: 3.16.0-45-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: C1:A3:1E:DB:9F:C4:C6:4E:2D:95:A7:FF:18:A6:73:D1:8C:AB:15:A6
sig_hashalgo: sha512
[rtlwifi]
filename: /lib/modules/3.16.0-45-generic/kernel/drivers/net/wireless/rtlwifi/rtlwifi.ko
description: Realtek 802.11n PCI wireless core
license: GPL
author: Larry Finger <Larry.FInger@lwfinger.net>
author: Realtek WlanFAE <wlanfae@realtek.com>
author: lizhaoming <chaoming_li@realsil.com.cn>
srcversion: 8362106E96F806A9DBAE565
depends: mac80211,cfg80211
intree: Y
vermagic: 3.16.0-45-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: C1:A3:1E:DB:9F:C4:C6:4E:2D:95:A7:FF:18:A6:73:D1:8C:AB:15:A6
sig_hashalgo: sha512
[rtl8192c_common]
filename: /lib/modules/3.16.0-45-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192c/rtl8192c-common.ko
description: Realtek 8192C/8188C 802.11n PCI wireless
license: GPL
author: Larry Finger <Larry.Finger@lwfinger.net>
author: Ziv Huang <ziv_huang@realtek.com>
author: Georgia <georgia@realtek.com>
author: Realtek WlanFAE <wlanfae@realtek.com>
author: lizhaoming <chaoming_li@realsil.com.cn>
srcversion: A279C50E29ED7F277EAF738
depends:
intree: Y
vermagic: 3.16.0-45-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: C1:A3:1E:DB:9F:C4:C6:4E:2D:95:A7:FF:18:A6:73:D1:8C:AB:15:A6
sig_hashalgo: sha512
[mac80211]
filename: /lib/modules/3.16.0-45-generic/kernel/net/mac80211/mac80211.ko
license: GPL
description: IEEE 802.11 subsystem
srcversion: 315DCE1E2614AE1F38132D3
depends: cfg80211
intree: Y
vermagic: 3.16.0-45-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: C1:A3:1E:DB:9F:C4:C6:4E:2D:95:A7:FF:18:A6:73:D1:8C:AB:15:A6
sig_hashalgo: sha512
parm: max_nullfunc_tries:Maximum nullfunc tx tries before disconnecting (reason 4). (int)
parm: max_probe_tries:Maximum probe tries before disconnecting (reason 4). (int)
parm: beacon_loss_count:Number of beacon intervals before we decide beacon was lost. (int)
parm: probe_wait_ms:Maximum time(ms) to wait for probe response before disconnecting (reason 4). (int)
parm: ieee80211_default_rc_algo:Default rate control algorithm for mac80211 to use (charp)
[cfg80211]
filename: /lib/modules/3.16.0-45-generic/kernel/net/wireless/cfg80211.ko
description: wireless configuration support
license: GPL
author: Johannes Berg
srcversion: D48679749A6B8B822E391CA
depends:
intree: Y
vermagic: 3.16.0-45-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: C1:A3:1E:DB:9F:C4:C6:4E:2D:95:A7:FF:18:A6:73:D1:8C:AB:15:A6
sig_hashalgo: sha512
parm: ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
parm: cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)
##### module parameters #################
[rtl8192cu]
debug: 0
swenc: N
[mac80211]
beacon_loss_count: 7
ieee80211_default_rc_algo: minstrel_ht
max_nullfunc_tries: 2
max_probe_tries: 5
probe_wait_ms: 500
[cfg80211]
cfg80211_disable_40mhz_24ghz: N
ieee80211_regdom: 00
##### /etc/modules ######################
lp
rtc
##### modprobe options ##################
[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci
[/etc/modprobe.d/blacklist.conf]
blacklist evbug
blacklist usbmouse
blacklist usbkbd
blacklist eepro100
blacklist de4x5
blacklist eth1394
blacklist snd_intel8x0m
blacklist snd_aw2
blacklist i2c_i801
blacklist prism54
blacklist bcm43xx
blacklist garmin_gps
blacklist asus_acpi
blacklist snd_pcsp
blacklist pcspkr
blacklist amd76x_edac
[/etc/modprobe.d/blacklist-rare-network.conf]
alias net-pf-3 off
alias net-pf-6 off
alias net-pf-9 off
alias net-pf-11 off
alias net-pf-12 off
alias net-pf-19 off
alias net-pf-21 off
alias net-pf-36 off
[/etc/modprobe.d/iwlwifi.conf]
options iwlwifi 11n_disable=1
[/etc/modprobe.d/mlx4.conf]
softdep mlx4_core post: mlx4_en
[/etc/modprobe.d/modesetting.conf]
options cirrus modeset=1
options mgag200 modeset=1
[/etc/modprobe.d/rtl8723be.conf]
options rtl8723be fwlps=0
##### rc.local ##########################
exit 0
##### pm-utils ##########################
##### udev rules ########################
[/etc/udev/rules.d/70-persistent-net.rules]
# PCI device 0x10ec:0x8168 (r8169)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'eth0' [IF]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# USB device 0x:0x (rtl8192cu)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC 'wlan0' [IF]>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"
##### dmesg #############################
[ 20.635259] rtl8192cu: MAC auto ON okay!
[ 20.668023] rtl8192cu: Tx queue select: 0x05
[ 21.081076] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 22.700664] wlan0: authenticate with <MAC 'mimimishka' [AN7]>
[ 22.724773] wlan0: send auth to <MAC 'mimimishka' [AN7]> (try 1/3)
[ 22.726614] wlan0: authenticated
[ 22.728123] wlan0: associate with <MAC 'mimimishka' [AN7]> (try 1/3)
[ 22.740820] wlan0: RX AssocResp from <MAC 'mimimishka' [AN7]> (capab=0x411 status=0 aid=1)
[ 22.740880] wlan0: associated
[ 22.740888] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 27.074978] wlan0: deauthenticated from <MAC 'mimimishka' [AN7]> (Reason: 15=4WAY_HANDSHAKE_TIMEOUT)
[ 27.094197] wlan0: authenticate with <MAC 'mimimishka' [AN7]>
[ 27.106253] wlan0: send auth to <MAC 'mimimishka' [AN7]> (try 1/3)
[ 27.107837] wlan0: authenticated
[ 27.109691] wlan0: associate with <MAC 'mimimishka' [AN7]> (try 1/3)
[ 27.123577] wlan0: RX AssocResp from <MAC 'mimimishka' [AN7]> (capab=0x411 status=0 aid=1)
[ 27.123643] wlan0: associated
[ 31.274826] wlan0: deauthenticated from <MAC 'mimimishka' [AN7]> (Reason: 15=4WAY_HANDSHAKE_TIMEOUT)
[ 38.238369] wlan0: authenticate with <MAC 'krasota' [AC1]>
[ 38.250536] wlan0: send auth to <MAC 'krasota' [AC1]> (try 1/3)
[ 38.253479] wlan0: authenticated
[ 38.255457] wlan0: associate with <MAC 'krasota' [AC1]> (try 1/3)
[ 38.274106] wlan0: RX AssocResp from <MAC 'krasota' [AC1]> (capab=0x431 status=0 aid=3)
[ 38.274165] wlan0: associated
########## wireless info END ############Merci de m'aider.
