Connexion sans fil instable dans Ubuntu 14.04
Je viens de passer à la version 14.04 et je me suis rendu compte qu'après un certain temps après la connexion à un réseau wifi, mon ordinateur se déconnecte soudainement et je dois désactiver puis réactiver le wifi pour se connecter. C'est un problème majeur pour moi, en particulier lors du téléchargement de fichiers. Des corrections? J'ai déjà essayé de désactiver IPv6 comme suggéré dans certaines publications en plus d'autres correctifs. S'il vous plaît aider, mon ordinateur fonctionne en 64 bits.
Voici le résultat de l'exécution du script:
########## wireless info START ##########
##### release #####
Distributor ID: Ubuntu
Description: Ubuntu 14.04.1 LTS
Release: 14.04
Codename: trusty
##### kernel #####
Linux Bilal-Satellite-C655D 3.13.0-32-generic #57-Ubuntu SMP Tue Jul 15 03:51:08 UTC 2014 x86_64 x86_64 x86_64 GNU/Linux
##### lspci #####
02:00.0 Network controller [0280]: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter [10ec:8176] (rev 01)
Subsystem: Realtek Semiconductor Co., Ltd. Device [10ec:8181]
Kernel driver in use: rtl8192ce
06:00.0 Ethernet controller [0200]: Qualcomm Atheros AR8152 v1.1 Fast Ethernet [1969:2060] (rev c1)
Subsystem: Toshiba America Info Systems Device [1179:ff1e]
Kernel driver in use: atl1c
##### lsusb #####
Bus 003 Device 002: ID 10f1:1a34 Importek
Bus 003 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 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 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
##### PCMCIA Card Info #####
##### rfkill #####
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
##### lsmod #####
rtl8192ce 53550 0
rtl_pci 26690 1 rtl8192ce
rtlwifi 63475 2 rtl_pci,rtl8192ce
rtl8192c_common 53172 1 rtl8192ce
mac80211 630653 3 rtl_pci,rtlwifi,rtl8192ce
cfg80211 484040 2 mac80211,rtlwifi
##### iw reg get #####
country 00:
(2402 - 2472 @ 40), (3, 20)
(2457 - 2482 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
(2474 - 2494 @ 20), (3, 20), NO-OFDM, PASSIVE-SCAN, NO-IBSS
(5170 - 5250 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
(5735 - 5835 @ 40), (3, 20), PASSIVE-SCAN, NO-IBSS
##### interfaces #####
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
##### iwconfig #####
wlan0 IEEE 802.11bgn ESSID:"B D HOME"
Mode:Managed Frequency:2.462 GHz Access Point: <MAC address removed>
Bit Rate=18 Mb/s Tx-Power=20 dBm
Retry long 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:81 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
##### nm-tool #####
NetworkManager Tool
State: connected (global)
- Device: eth0 -----------------------------------------------------------------
Type: Wired
Driver: atl1c
State: unavailable
Default: no
HW Address: <MAC address removed>
Capabilities:
Carrier Detect: yes
Wired Properties
Carrier: off
- Device: wlan0 [B D HOME] ----------------------------------------------------
Type: 802.11 WiFi
Driver: rtl8192ce
State: connected
Default: yes
HW Address: <MAC address removed>
Capabilities:
Speed: 18 Mb/s
Wireless Properties
WEP Encryption: yes
WPA Encryption: yes
WPA2 Encryption: yes
Wireless Access Points (* = current AP)
BlueSky: Infra, <MAC address removed>, Freq 2462 MHz, Rate 54 Mb/s, Strength 54 WPA2
Name FA9911.: Infra, <MAC address removed>, Freq 2437 MHz, Rate 54 Mb/s, Strength 40 WPA WPA2
moaaz: Infra, <MAC address removed>, Freq 2437 MHz, Rate 54 Mb/s, Strength 34 WPA
fadi: Infra, <MAC address removed>, Freq 2437 MHz, Rate 54 Mb/s, Strength 34 WPA
MikroTik-A60863: Infra, <MAC address removed>, Freq 2412 MHz, Rate 54 Mb/s, Strength 30 WPA WPA2
free set up 186kb 15$ 70.926915: Infra, <MAC address removed>, Freq 2462 MHz, Rate 11 Mb/s, Strength 27
fre set 512kb 25$ 70.926915: Infra, <MAC address removed>, Freq 2412 MHz, Rate 54 Mb/s, Strength 27
for internet cafe 33$ 70.926915: Infra, <MAC address removed>, Freq 2412 MHz, Rate 54 Mb/s, Strength 40
fre set 512/512 25$ 71/566484: Infra, <MAC address removed>, Freq 2412 MHz, Rate 54 Mb/s, Strength 37
fre set 2mb/1.5m 45$ 71/566484: Infra, <MAC address removed>, Freq 2412 MHz, Rate 54 Mb/s, Strength 37
phone 10$ unlimited 70.926915: Infra, <MAC address removed>, Freq 2412 MHz, Rate 54 Mb/s, Strength 37
fre set 384/384 20$ 71/566484: Infra, <MAC address removed>, Freq 2412 MHz, Rate 54 Mb/s, Strength 34
network cafe 44$ 71/566484: Infra, <MAC address removed>, Freq 2412 MHz, Rate 54 Mb/s, Strength 30
new for dealers acc 8$ 70.926915: Infra, <MAC address removed>, Freq 2412 MHz, Rate 54 Mb/s, Strength 37
fre set 384kb 20$ 70.926915: Infra, <MAC address removed>, Freq 2412 MHz, Rate 54 Mb/s, Strength 37
*B D HOME: Infra, <MAC address removed>, Freq 2462 MHz, Rate 54 Mb/s, Strength 56 WPA WPA2
fre set 1m 33$ 70.926915: Infra, <MAC address removed>, Freq 2412 MHz, Rate 54 Mb/s, Strength 37
IPv4 Settings:
Address: 192.168.1.2
Prefix: 24 (255.255.255.0)
Gateway: 192.168.1.1
DNS: 192.168.1.1
##### NetworkManager.state #####
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
##### NetworkManager.conf #####
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=false
##### iwlist #####
wlan0 Scan completed :
Cell 01 - Address: <MAC address removed>
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=46/70 Signal level=-64 dBm
Encryption key:on
ESSID:"B D HOME"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=000000054e91bcb4
Extra: Last beacon: 64ms ago
IE: Unknown: 000842204420484F4D45
IE: Unknown: 010882848B962430486C
IE: Unknown: 03010B
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
IE: Unknown: 32040C121860
IE: Unknown: DD090010180204F0000000
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (2) : CCMP TKIP
Authentication Suites (1) : PSK
Cell 02 - Address: <MAC address removed>
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=32/70 Signal level=-78 dBm
Encryption key:off
ESSID:"new for dealers acc 8$ 70.926915"
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=000001674f6459ac
Extra: Last beacon: 4264ms ago
IE: Unknown: 00206E657720666F72206465616C657273206163632038242037302E393236393135
IE: Unknown: 010882848B960C121824
IE: Unknown: 030101
IE: Unknown: 050400010000
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: DD2A000C42000000011E00000000006614030000303030323646363941423533000000000000000005026C09
Cell 03 - Address: <MAC address removed>
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=32/70 Signal level=-78 dBm
Encryption key:off
ESSID:"fre set 384kb 20$ 70.926915"
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=000001674f645f12
Extra: Last beacon: 4264ms ago
IE: Unknown: 001B66726520736574203338346B62203230242037302E393236393135
IE: Unknown: 010882848B960C121824
IE: Unknown: 030101
IE: Unknown: 050400010000
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: DD2A000C42000000011E00000000006614030000303030323646363941423533000000000000000005026C09
Cell 04 - Address: <MAC address removed>
Channel:1
Frequency:2.412 GHz (Channel 1)
Quality=32/70 Signal level=-78 dBm
Encryption key:off
ESSID:"fre set 2.5mb 45$ 70.926915"
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=000001674f64644e
Extra: Last beacon: 4260ms ago
IE: Unknown: 001B6672652073657420322E356D62203435242037302E393236393135
IE: Unknown: 010882848B960C121824
IE: Unknown: 030101
IE: Unknown: 050400010000
IE: Unknown: 2A0100
IE: Unknown: 32043048606C
IE: Unknown: DD2A000C42000000011E00000000006614030000303030323646363941423533000000000000000005026C09
Cell 05 - Address: <MAC address removed>
Channel:11
Frequency:2.462 GHz (Channel 11)
Quality=38/70 Signal level=-72 dBm
Encryption key:on
ESSID:"BlueSky"
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000000323d91340
Extra: Last beacon: 64ms ago
IE: Unknown: 0007426C7565536B79
IE: Unknown: 010882848B962430486C
IE: Unknown: 03010B
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 32040C121860
IE: Unknown: DD090010180201F0000000
Cell 06 - Address: <MAC address removed>
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=30/70 Signal level=-80 dBm
Encryption key:on
ESSID:"Name FA9911."
Bit Rates:1 Mb/s; 2 Mb/s; 5.5 Mb/s; 11 Mb/s; 18 Mb/s
24 Mb/s; 36 Mb/s; 54 Mb/s
Bit Rates:6 Mb/s; 9 Mb/s; 12 Mb/s; 48 Mb/s
Mode:Master
Extra:tsf=0000000000000000
Extra: Last beacon: 64ms ago
IE: Unknown: 000C4E616D65204641393931312E
IE: Unknown: 010882848B962430486C
IE: Unknown: 030106
IE: Unknown: 2A0100
IE: Unknown: 2F0100
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
IE: Unknown: 32040C121860
IE: Unknown: 2D1A1C181BFFFF000000000000000000000000000000000000000000
IE: Unknown: 3D1606081500000000000000000000000000000000000000
IE: Unknown: DD090010180202000C0000
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
IE: Unknown: DD180050F2020101000003A4000027A4000042435E0062322F00
Cell 07 - Address: <MAC address removed>
Channel:6
Frequency:2.437 GHz (Channel 6)
Quality=30/70 Signal level=-80 dBm
Encryption key:on
ESSID:"fadi"
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=00000006b08c8181
Extra: Last beacon: 2544ms ago
IE: Unknown: 000466616469
IE: Unknown: 010882848B960C121824
IE: Unknown: 030106
IE: Unknown: 050400010000
IE: Unknown: 2A0100
IE: WPA Version 1
Group Cipher : TKIP
Pairwise Ciphers (1) : TKIP
Authentication Suites (1) : PSK
IE: Unknown: 32043048606C
IE: Unknown: DD0900037F01010060FF7F
IE: Unknown: DD050050F20500
IE: Unknown: DD0E0050F204104A0001101044000102
##### iwlist channel #####
wlan0 13 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
Channel 12 : 2.467 GHz
Channel 13 : 2.472 GHz
Current Frequency:2.462 GHz (Channel 11)
##### modinfo #####
filename: /lib/modules/3.13.0-32-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192ce/rtl8192ce.ko
firmware: rtlwifi/rtl8192cfwU_B.bin
firmware: rtlwifi/rtl8192cfwU.bin
firmware: rtlwifi/rtl8192cfw.bin
description: Realtek 8192C/8188C 802.11n PCI wireless
license: GPL
author: Larry Finger <[email protected]>
author: Realtek WlanFAE <[email protected]>
author: lizhaoming <[email protected]>
srcversion: EF063698748457BBEDB4633
alias: pci:v000010ECd00008176sv*sd*bc*sc*i*
alias: pci:v000010ECd00008177sv*sd*bc*sc*i*
alias: pci:v000010ECd00008178sv*sd*bc*sc*i*
alias: pci:v000010ECd00008191sv*sd*bc*sc*i*
depends: rtlwifi,rtl_pci,rtl8192c-common,mac80211
intree: Y
vermagic: 3.13.0-32-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: <MAC address removed>:65:43:53:5F:A2:BB:5B:70:9E:84:F1:6D:A7:C7
sig_hashalgo: sha512
parm: swenc:Set to 1 for software crypto (default 0)
(bool)
parm: ips:Set to 0 to not use link power save (default 1)
(bool)
parm: swlps:Set to 1 to use SW control power save (default 0)
(bool)
parm: fwlps:Set to 1 to use FW control power save (default 1)
(bool)
parm: debug:Set debug level (0-5) (default 0) (int)
filename: /lib/modules/3.13.0-32-generic/kernel/drivers/net/wireless/rtlwifi/rtl_pci.ko
description: PCI basic driver for rtlwifi
license: GPL
author: Larry Finger <[email protected]>
author: Realtek WlanFAE <[email protected]>
author: lizhaoming <[email protected]>
srcversion: D5E4890DC428FA5A1BF92DF
depends: mac80211,rtlwifi
intree: Y
vermagic: 3.13.0-32-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: <MAC address removed>:65:43:53:5F:A2:BB:5B:70:9E:84:F1:6D:A7:C7
sig_hashalgo: sha512
filename: /lib/modules/3.13.0-32-generic/kernel/drivers/net/wireless/rtlwifi/rtlwifi.ko
description: Realtek 802.11n PCI wireless core
license: GPL
author: Larry Finger <[email protected]>
author: Realtek WlanFAE <[email protected]>
author: lizhaoming <[email protected]>
srcversion: E1F4663325225EE8DBA54CA
depends: mac80211,cfg80211
intree: Y
vermagic: 3.13.0-32-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: <MAC address removed>:65:43:53:5F:A2:BB:5B:70:9E:84:F1:6D:A7:C7
sig_hashalgo: sha512
filename: /lib/modules/3.13.0-32-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192c/rtl8192c-common.ko
description: Realtek 8192C/8188C 802.11n PCI wireless
license: GPL
author: Larry Finger <[email protected]>
author: Ziv Huang <[email protected]>
author: Georgia <[email protected]>
author: Realtek WlanFAE <[email protected]>
author: lizhaoming <[email protected]>
srcversion: 32F826C623BC49F764F7974
depends:
intree: Y
vermagic: 3.13.0-32-generic SMP mod_unload modversions
signer: Magrathea: Glacier signing key
sig_key: <MAC address removed>:65:43:53:5F:A2:BB:5B:70:9E:84:F1:6D:A7:C7
sig_hashalgo: sha512
##### modules #####
loop
lp
rtc
##### blacklist #####
[/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/fbdev-blacklist.conf]
blacklist arkfb
blacklist aty128fb
blacklist atyfb
blacklist radeonfb
blacklist cirrusfb
blacklist cyber2000fb
blacklist gx1fb
blacklist gxfb
blacklist kyrofb
blacklist matroxfb_base
blacklist mb862xxfb
blacklist neofb
blacklist nvidiafb
blacklist pm2fb
blacklist pm3fb
blacklist s3fb
blacklist savagefb
blacklist sisfb
blacklist tdfxfb
blacklist tridentfb
blacklist viafb
blacklist vt8623fb
##### udev rules #####
# PCI device 0x1969:/sys/devices/pci0000:00/0000:00:15.1/0000:06:00.0 (atl1c)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC address removed>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x10ec:/sys/devices/pci0000:00/0000:00:15.0/0000:02:00.0 (rtl8192ce)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC address removed>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"
##### dmesg #####
[ 3.247310] psmouse serio1: elantech: assuming hardware version 3 (with firmware version 0x250f01)
[ 18.646342] rtl8192ce: Using firmware rtlwifi/rtl8192cfw.bin
[ 18.730826] ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
[ 18.731483] rtlwifi: wireless switch is on
[ 22.877235] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 22.879133] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 25.091042] wlan0: authenticate with <MAC address removed>
[ 25.114153] wlan0: send auth to <MAC address removed> (try 1/3)
[ 25.116811] wlan0: authenticated
[ 25.117317] rtl8192ce 0000:02:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
[ 25.117325] rtl8192ce 0000:02:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
[ 25.130018] wlan0: associate with <MAC address removed> (try 1/3)
[ 25.135637] wlan0: RX AssocResp from <MAC address removed> (capab=0x411 status=0 aid=5)
[ 25.135898] wlan0: associated
[ 25.135974] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 25.357409] wlan0: deauthenticating from <MAC address removed> by local choice (reason=2)
[ 25.382134] wlan0: authenticate with <MAC address removed>
[ 25.382338] wlan0: send auth to <MAC address removed> (try 1/3)
[ 25.384936] wlan0: authenticated
[ 25.385261] rtl8192ce 0000:02:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
[ 25.385269] rtl8192ce 0000:02:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
[ 25.385434] wlan0: associate with <MAC address removed> (try 1/3)
[ 25.392661] wlan0: RX AssocResp from <MAC address removed> (capab=0x411 status=0 aid=5)
[ 25.392859] wlan0: associated
[ 1782.666156] wlan0: deauthenticated from <MAC address removed> (Reason: 7)
[ 1783.946838] wlan0: authenticate with <MAC address removed>
[ 1783.947159] wlan0: send auth to <MAC address removed> (try 1/3)
[ 1783.955463] wlan0: authenticated
[ 1783.955883] rtl8192ce 0000:02:00.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
[ 1783.955890] rtl8192ce 0000:02:00.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
[ 1783.959855] wlan0: associate with <MAC address removed> (try 1/3)
[ 1783.962619] wlan0: RX AssocResp from <MAC address removed> (capab=0x411 status=0 aid=5)
[ 1783.962863] wlan0: associated
########## wireless info END ############
Ce pilote est problématique, mais nous pouvons faire certaines choses pour l’aider à mieux fonctionner habituellement.
D'abord dans votre routeur, changez 802.11bgn en 802.11bg.
Deuxièmement, changez le cryptage wpa/wpa2 en wpa2 (CCMP) (AES) et non (TKIP) si vous avez cette option, cela fonctionnera mieux.
Troisièmement, définissez votre canal sans fil sur le routeur sur 1 ou 11, puis enregistrez la configuration du routeur et redémarrez-la.
Quatrièmement, allez dans le gestionnaire de réseau dans le coin supérieur droit de l'écran et cliquez sur Modifier les connexions> onglet Sans fil et configurez IPV6 pour l'ignorer.
Cinquièmement, ouvrez le terminal CTRL + ALT + _T, puis copiez et collez le code suivant ligne par ligne pour plus de précision:
echo "options rtl8192ce swenc=1 ips=0" | Sudo tee /etc/modprobe.d/rtl8192ce.conf
Sudo modprobe -rfv rtl8192ce
Sudo modprobe -v rtl8192ce