Acabei de instalar o UBUNTU 14.04 LTS em um Toshiba Satellite C655D. Meu wifi cai ocasionalmente, e tudo o que preciso fazer para reconectar é desativar meu wifi e habilitar o wifi no ícone sem fio no canto superior direito. É apenas irritante.
Qualquer ajuda seria apreciada, eu sou novo no UBUNTU, mas estou interessado em aprender os comandos linux. Felizmente, alguns comandos são semelhantes ao DOS e ao código de lote.
Uso um roteador e não tenho problemas com outros dispositivos sem fio no momento, incluindo outro laptop executando o 14.04, mas é um Aspire One mais antigo.
Aqui estão as informações do wireless_script que encontrei no fórum:
======== Wireless-Info START ========
Informações do sistema ~~~~~~~~~~~~~~~~~~~~~~~~
Satellite-C655D 3.13.0-32-generic x86_64, Ubuntu 14.04 LTS, trusty
CPU : AMD C-50 Processor
Memory : 2606 MB
Uptime : 11:38:53 up 2:59, 2 users, load average: 0.53, 0.67, 0.69
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 002: ID 046d:c06c Logitech, Inc. Optical Mouse
Bus 004 Device 001: ID 1d6b:0001 Linux Foundation 1.1 root hub
Informações do cartão PCMCIA ~~~~~~~~~~~~~~~~~~~
iwconfig ~~~~~~~~~~~~~~~~~~~~~~~~~~
wlan0 IEEE 802.11bgn ESSID:"Home"
Mode:Managed Frequency:2.457 GHz Access Point: <MAC C-01 Home>
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=56/70 Signal level=-54 dBm
Rx invalid nwid:0 Rx invalid crypt:0 Rx invalid frag:0
Tx excessive retries:0 Invalid misc:90 Missed beacon:0
rfkill ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
Interface Soft blocked Hard blocked
0: phy0: Wireless LAN no 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
wmi 19177 1 toshiba_acpi
parâmetros do módulo ~~~~~~~~~~~~~~~~~~
cfg80211 (2): cfg80211_disable_40mhz_24ghz=N | ieee80211_regdom=00
mac80211 (5): beacon_loss_count=7 | ieee80211_default_rc_algo=minstrel_ht | max_nullfunc_tries=2 | max_probe_tries=5 | probe_wait_ms=500
rtl8192ce (5): debug=0 | fwlps=Y | ips=Y | swenc=N | swlps=N
wmi (2): debug_dump_wdg=N | debug_event=N
nm-tool ~~~~~~~~~~~~~~~~~~~~~~~~~~~
State: connected (global)
================o=============o===========o==============o=========o===========o==============o===========
Interface & ID | Type | Driver | State | Default | Speed | Support | HW Addr
================o=============o===========o==============o=========o===========o==============o===========
eth0 | Wired | atl1c | unavailable | no | | | <MAC eth0>
----------------+-------------+-----------+--------------+---------+-----------+--------------+-----------
wlan0 [Home] | 802.11 WiFi | rtl8192ce | connected | yes | 18 Mb/s | WEP/WPA/WPA2 | <MAC wlan0>
MyCharterWiFia0-2G: Infra, <MAC C-NA MyCharterWiFia0-2G 1>, Freq 2417 MHz, Rate 54 Mb/s, Strength 40 WPA2
*Home: Infra, <MAC C-01 Home>, Freq 2457 MHz, Rate 54 Mb/s, Strength 66
notyours: Infra, <MAC C-02 notyours>, Freq 2452 MHz, Rate 54 Mb/s, Strength 20 WPA2
Address: 192.168.1.121
Prefix: 24 (255.255.255.0)
Gateway: 192.168.1.1
DNS: removed
DNS: removed
DNS: removed
----------------+-------------+-----------+--------------+---------+-----------+--------------+-----------
NetworkManager.state ~~~~~~~~~~~~~~~
[main]
NetworkingEnabled=true
WirelessEnabled=true
WWANEnabled=true
WimaxEnabled=true
NetworkManager.conf ~~~~~~~~~~~~~~~~
[main]
plugins=ifupdown,keyfile,ofono
dns=dnsmasq
[ifupdown]
managed=false
Perfis de WiFi NM ~~~~~~~~~~~~~~~~~~~
Home : ssid=Home | mac-address=<MAC wlan0> | ipv6=auto | ipv4=auto
interfaces ~~~~~~~~~~~~~~~~~~~~~~~~~
# interfaces(5) file used by ifup(8) and ifdown(8)
auto lo
iface lo inet loopback
resolv.conf ~~~~~~~~~~~~~~~~~~~~~~~~
nameserver 127.0.1.1
Rotas e Ping ~~~~~~~~~~~~~~~~~~~~~~
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
--- 192.168.1.1 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 1001ms
rtt min/avg/max/mdev = 2.315/2.845/3.376/0.533 ms
--- 127.0.1.1 ping statistics ---
2 packets transmitted, 2 received, 0% packet loss, time 999ms
rtt min/avg/max/mdev = 0.088/0.088/0.088/0.000 ms
iw reg get ~~~~~~~~~~~~~~~~~~~~~~~~~
(Region : "en_US.UTF-8")
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
iwlist chan ~~~~~~~~~~~~~~~~~~~~~~~~
wlan0 13 channels in total; available frequencies :
Channel 01 (2.412 GHz) - 13 (2.472 GHz)
Current Frequency:2.457 GHz (Channel 10)
varredura do iwlist ~~~~~~~~~~~~~~~~~~~~~~~~
wlan0 Scan completed :
Cell 01 - Address: <MAC C-01 Home>
Channel:10
Frequency:2.457 GHz (Channel 10)
Quality=54/70 Signal level=-56 dBm
Encryption key:off
ESSID:"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=000000a88b1ceaa6
Extra: Last beacon: 84ms ago
Cell 02 - Address: <MAC C-02 notyours>
Channel:9
Frequency:2.452 GHz (Channel 9)
Quality=24/70 Signal level=-86 dBm
Encryption key:on
ESSID:"notyours"
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=00000c380d063183
Extra: Last beacon: 368ms ago
IE: IEEE 802.11i/WPA2 Version 1
Group Cipher : CCMP
Pairwise Ciphers (1) : CCMP
Authentication Suites (1) : PSK
lista negra ~~~~~~~~~~~~~~~~~~~~~~~~~~
[/etc/modprobe.d/blacklist-ath_pci.conf]
blacklist ath_pci
modinfo ~~~~~~~~~~~~~~~~~~~~~~~~~~~
[rtl8192ce]
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
srcversion: EF063698748457BBEDB4633
depends: rtlwifi,rtl_pci,rtl8192c-common,mac80211
parm: swenc:Set to 1 for software crypto (default 0)
parm: ips:Set to 0 to not use link power save (default 1)
parm: swlps:Set to 1 to use SW control power save (default 0)
parm: fwlps:Set to 1 to use FW control power save (default 1)
parm: debug:Set debug level (0-5) (default 0) (int)
[rtl_pci]
filename: /lib/modules/3.13.0-32-generic/kernel/drivers/net/wireless/rtlwifi/rtl_pci.ko
srcversion: D5E4890DC428FA5A1BF92DF
depends: mac80211,rtlwifi
[rtlwifi]
filename: /lib/modules/3.13.0-32-generic/kernel/drivers/net/wireless/rtlwifi/rtlwifi.ko
srcversion: E1F4663325225EE8DBA54CA
depends: mac80211,cfg80211
[rtl8192c_common]
filename: /lib/modules/3.13.0-32-generic/kernel/drivers/net/wireless/rtlwifi/rtl8192c/rtl8192c-common.ko
srcversion: 32F826C623BC49F764F7974
depends:
[mac80211]
filename: /lib/modules/3.13.0-32-generic/kernel/net/mac80211/mac80211.ko
srcversion: 8ADA881D348148A3358334C
depends: cfg80211
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/3.13.0-32-generic/kernel/net/wireless/cfg80211.ko
srcversion: E786D076B61F97809B04B64
depends:
parm: ieee80211_regdom:IEEE 802.11 regulatory domain code (charp)
parm: cfg80211_disable_40mhz_24ghz:Disable 40MHz support in the 2.4GHz band (bool)
regras do udev ~~~~~~~~~~~~~~~~~~~~~~~~~
# PCI device 0x1969:0x2060 (atl1c)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC eth0>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="eth*", NAME="eth0"
# PCI device 0x10ec:0x8176 (rtl8192ce)
SUBSYSTEM=="net", ACTION=="add", DRIVERS=="?*", ATTR{address}=="<MAC wlan0>", ATTR{dev_id}=="0x0", ATTR{type}=="1", KERNEL=="wlan*", NAME="wlan0"
Arquivos / entradas personalizados ~~~~~~~~~~~~~~~
/etc/modules : Default
/etc/rc.local : Default
/etc/modprobe.d : Not Default
/etc/pm/(cnf|pw|sl) : Default
[/etc/modprobe.d]
mlx4.conf : softdep mlx4_core post: mlx4_en
Linha de inicialização do kernel ~~~~~~~~~~~~~~~~~~~
BOOT_IMAGE=/vmlinuz-3.13.0-32-generic root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7
dmesg ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~
[ 2.226619] microcode: Microcode Update Driver: v2.00 <[email protected]>, Peter Oruba
[ 2.227831] audit: initializing netlink socket (disabled)
[ 4.141892] psmouse serio1: elantech: assuming hardware version 3 (with firmware version 0x250f01)
[ 13.317618] Bluetooth: BNEP (Ethernet Emulation) ver 1.3
[ 14.029316] wmi: Mapper loaded
[ 16.024516] rtl8192ce: Using firmware rtlwifi/rtl8192cfw.bin
[ 16.245437] ieee80211 phy0: Selected rate control algorithm 'rtl_rc'
[ 16.246292] rtlwifi: wireless switch is on
[ 21.829897] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 21.831623] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 24.389024] wlan0: authenticate with <MAC C-01 Home>
[ 24.410340] wlan0: send auth to <MAC C-01 Home> (try 1/3)
[ 24.413577] wlan0: authenticated
[ 24.421609] wlan0: associate with <MAC C-01 Home> (try 1/3)
[ 24.423984] wlan0: RX AssocResp from <MAC C-01 Home> (capab=0x401 status=0 aid=8)
[ 24.424197] wlan0: associated
[ 24.424263] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 24.428436] wlan0: deauthenticating from <MAC C-01 Home> by local choice (reason=2)
[ 24.429155] wlan0: authenticate with <MAC C-01 Home>
[ 24.429441] wlan0: send auth to <MAC C-01 Home> (try 1/3)
[ 24.431321] wlan0: authenticated
[ 24.437667] wlan0: associate with <MAC C-01 Home> (try 1/3)
[ 24.440062] wlan0: RX AssocResp from <MAC C-01 Home> (capab=0x401 status=0 aid=8)
[ 24.440264] wlan0: associated
[ 34.446201] wlan0: deauthenticating from <MAC C-01 Home> by local choice (reason=3)
[ 35.753724] wlan0: authenticate with <MAC C-01 Home>
[ 35.770004] wlan0: send auth to <MAC C-01 Home> (try 1/3)
[ 35.771843] wlan0: authenticated
[ 35.774700] wlan0: associate with <MAC C-01 Home> (try 1/3)
[ 35.777297] wlan0: RX AssocResp from <MAC C-01 Home> (capab=0x401 status=0 aid=8)
[ 35.777513] wlan0: associated
[ 643.559339] wlan0: deauthenticated from <MAC C-01 Home> (Reason: 7)
[ 643.598481] wlan0: authenticate with <MAC C-01 Home>
[ 643.598787] wlan0: send auth to <MAC C-01 Home> (try 1/3)
[ 643.604888] wlan0: authenticated
[ 643.606162] wlan0: associate with <MAC C-01 Home> (try 1/3)
[ 643.610387] wlan0: RX AssocResp from <MAC C-01 Home> (capab=0x401 status=0 aid=8)
[ 643.610641] wlan0: associated
[ 713.319037] wlan0: deauthenticated from <MAC C-01 Home> (Reason: 7)
[ 728.408563] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 738.592725] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 739.601499] wlan0: authenticate with <MAC C-01 Home>
[ 739.935776] wlan0: send auth to <MAC C-01 Home> (try 1/3)
[ 740.038620] wlan0: send auth to <MAC C-01 Home> (try 2/3)
[ 740.142648] wlan0: send auth to <MAC C-01 Home> (try 3/3)
[ 740.246553] wlan0: authentication with <MAC C-01 Home> timed out
[ 741.192350] wlan0: authenticate with <MAC C-01 Home>
[ 741.201644] wlan0: send auth to <MAC C-01 Home> (try 1/3)
[ 741.203327] wlan0: authenticated
[ 741.207022] wlan0: associate with <MAC C-01 Home> (try 1/3)
[ 741.210702] wlan0: RX AssocResp from <MAC C-01 Home> (capab=0x401 status=0 aid=8)
[ 741.211034] wlan0: associated
[ 741.211120] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
[ 1438.357303] wlan0: deauthenticating from <MAC C-01 Home> by local choice (reason=3)
[ 1442.614329] rtlwifi: wireless switch is on
[ 1446.371442] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
[ 1447.389541] wlan0: authenticate with <MAC C-01 Home>
[ 1447.389841] wlan0: send auth to <MAC C-01 Home> (try 1/3)
[ 1447.396790] wlan0: authenticated
[ 1447.400822] wlan0: associate with <MAC C-01 Home> (try 1/3)
[ 1447.403732] wlan0: RX AssocResp from <MAC C-01 Home> (capab=0x401 status=0 aid=7)
[ 1447.403921] wlan0: associated
[ 1447.404002] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
======== Done ========
Respostas:
Primeiro no seu roteador, mude
802.11bgnpara802.11bg.Segundo, altere a criptografia wep para apenas wpa2 (CCMP) (AES) e não (TKIP), se você tiver essa opção, ela funcionará melhor.
Terceiro, defina seu canal sem fio no roteador como 1 ou 11, salve a configuração do roteador e reinicie-o.
Quarto, entre no gerenciador de rede, no canto superior direito da tela, clique em editar conexões> guia sem fio e defina o IPV6 para ignorar.
Agora abra o terminal CTRL + ALT + _T e copie e cole o seguinte código, uma linha de cada vez, para precisão:
fonte
Eu tive o mesmo problema - eu era preguiçoso, então fiz apenas o número 4
"entre no gerenciador de rede no canto superior direito da tela e clique em editar conexões> guia sem fio e defina o IPV6 para ignorar"
... e funcionou! obrigado
fonte