Wlan Problem (detecta redes mas não conecta)

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4

Então, meu problema é que eu recentemente coloquei o Ubuntu 12.10 como dual boot no meu pc desktop. Depois de algumas horas pesquisando, consegui que meu D-Link DWA-142 "funcionasse". No entanto, ele só verá as redes, mas não se conectará. Ele se conectou à rede uma vez, mas caiu depois de alguns minutos. Eu já fiz apt-get upgrade & amp; & amp; atualizar . Atualmente estou conectando via minha galáxia s2. Se eu colocar em um hotspot através do smartphone, ele irá se conectar, mas não terá uma conexão à internet. Agradecemos antecipadamente. 

iwconfig

dá: 

wlan0     IEEE 802.11g  ESSID:off/any  
          Mode:Managed  Frequency:2.412 GHz  Access Point: Not-Associated   
          Bit Rate:144.5 Mb/s   Sensitivity=-200 dBm  
          RTS thr=2346 B   Fragment thr=2346 B   
          Power Management:off
          Link Quality:0  Signal level:0  Noise level:0
          Rx invalid nwid:0  Rx invalid crypt:0  Rx invalid frag:0
          Tx excessive retries:0  Invalid misc:0   Missed beacon:0

A nm-tool fornece: 

NetworkManager Tool

State: connected (global)

- Device: wlan0 ----------------------------------------------------------------
  Type:              802.11 WiFi
  Driver:            ndiswrapper
  State:             unavailable
  Default:           no
  HW Address:        00:19:5B:55:17:53

  Capabilities:

  Wireless Properties
    WEP Encryption:  yes
    WPA Encryption:  yes
    WPA2 Encryption: yes

  Wireless Access Points

Ao tentar se conectar 

'sudo tail -f /var/log/syslog'

me dá: 

Dec 31 18:28:19 ToterLaptop NetworkManager[731]: <info> (wlan0): supplicant interface state: disconnected -> scanning        
Dec 31 18:28:21 ToterLaptop NetworkManager[731]: <warn> Activation (wlan0/wireless): association took too long.        
Dec 31 18:28:21 ToterLaptop NetworkManager[731]: <info> (wlan0): device state change: config -> need-auth (reason 'none') [50 60 0]        
Dec 31 18:28:21 ToterLaptop NetworkManager[731]: <warn> Activation (wlan0/wireless): asking for new secrets    
Dec 31 18:28:21 ToterLaptop NetworkManager[731]: <warn> Couldn't disconnect supplicant interface: This interface is not connected.        
Dec 31 18:28:21 ToterLaptop NetworkManager[731]: <warn> Couldn't disconnect supplicant interface: This interface is not connected.        
Dec 31 18:28:24 ToterLaptop NetworkManager[731]: get_secret_flags: assertion 'is_secret_prop (setting, secret_name, error)' failed       
Dec 31 18:28:24 ToterLaptop NetworkManager[731]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...        
Dec 31 18:28:24 ToterLaptop NetworkManager[731]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...        
Dec 31 18:28:24 ToterLaptop NetworkManager[731]: <info> (wlan0): device state change: need-auth -> prepare (reason 'none') [60 40 0]        
Dec 31 18:28:24 ToterLaptop NetworkManager[731]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...        
Dec 31 18:28:24 ToterLaptop NetworkManager[731]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.        
Dec 31 18:28:24 ToterLaptop NetworkManager[731]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting...        
Dec 31 18:28:24 ToterLaptop NetworkManager[731]: <info> (wlan0): device state change: prepare -> config (reason 'none') [40 50 0]        
Dec 31 18:28:24 ToterLaptop NetworkManager[731]: <info> Activation (wlan0/wireless): connection 'Wireless connection 1' has security, and secrets exist.  No new secrets needed.        
Dec 31 18:28:24 ToterLaptop NetworkManager[731]: <info> Config: added 'ssid' value 'MG'            
Dec 31 18:28:24 ToterLaptop NetworkManager[731]: <info> Config: added 'scan_ssid' value    '1'        
Dec 31 18:28:24 ToterLaptop NetworkManager[731]: <info> Config: added 'key_mgmt' value 'WPA-PSK'        
Dec 31 18:28:24 ToterLaptop NetworkManager[731]: <info> Config: added 'psk' value '<omitted>'        
Dec 31 18:28:24 ToterLaptop NetworkManager[731]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete.        
Dec 31 18:28:24 ToterLaptop NetworkManager[731]: <warn> Couldn't disconnect supplicant interface: This interface is not connected.       
Dec 31 18:28:24 ToterLaptop NetworkManager[731]: <info> Config: set interface ap_scan to 1        
Dec 31 18:28:29 ToterLaptop kernel: [  621.828627] end_request: I/O error, dev fd0, sector 0        
Dec 31 18:28:29 ToterLaptop kernel: [  621.828634] Buffer I/O error on device fd0, logical block 0        
Dec 31 18:28:34 ToterLaptop wpa_supplicant[2258]: wlan0: Trying to associate with 00:1f:3f:d5:1f:32 (SSID='MG' freq=2412 MHz)        
Dec 31 18:28:37 ToterLaptop NetworkManager[731]: <info> (wlan0): supplicant interface state: scanning -> associating        
Dec 31 18:28:42 ToterLaptop kernel: [  634.000763] end_request: I/O error, dev fd0, sector 0        
Dec 31 18:28:42 ToterLaptop kernel: [  634.000771] Buffer I/O error on device fd0, logical block 0        
Dec 31 18:28:47 ToterLaptop wpa_supplicant[2258]: wlan0: Authentication with 00:1f:3f:d5:1f:32 timed out.        
Dec 31 18:28:47 ToterLaptop NetworkManager[731]: <info> (wlan0): supplicant interface state: associating -> disconnected        
Dec 31 18:28:48 ToterLaptop NetworkManager[731]: <info> (wlan0): supplicant interface state: disconnected -> scanning        
Dec 31 18:28:50 ToterLaptop NetworkManager[731]: <warn> Activation (wlan0/wireless): association took too long.        
Dec 31 18:28:50 ToterLaptop NetworkManager[731]: <info> (wlan0): device state change: config -> need-auth (reason 'none') [50 60 0]        
Dec 31 18:28:50 ToterLaptop NetworkManager[731]: <warn> Activation (wlan0/wireless): asking for new secrets        
Dec 31 18:28:50 ToterLaptop NetworkManager[731]: <warn> Couldn't disconnect supplicant interface: This interface is not connected.        
Dec 31 18:28:50 ToterLaptop NetworkManager[731]: <warn> Couldn't disconnect supplicant interface: This interface is not connected.        
Dec 31 18:28:54 ToterLaptop kernel: [  646.165373] end_request: I/O error, dev fd0, sector 0        
Dec 31 18:28:54 ToterLaptop kernel: [  646.165380] Buffer I/O error on device fd0, logical block 0        
Dec 31 18:28:58 ToterLaptop NetworkManager[731]: <info> (wlan0): supplicant interface state: scanning -> inactive        
Dec 31 18:29:00 ToterLaptop NetworkManager[731]: <warn> No agents were available for this request.        
Dec 31 18:29:00 ToterLaptop NetworkManager[731]: <info> (wlan0): device state change: need-auth -> failed (reason 'no-secrets') [60 120 7]        
Dec 31 18:29:00 ToterLaptop NetworkManager[731]: <info> Marking connection 'Wireless connection 1' invalid.        
Dec 31 18:29:00 ToterLaptop NetworkManager[731]: <warn> Activation (wlan0) failed for connection 'Wireless connection 1'        
Dec 31 18:29:00 ToterLaptop NetworkManager[731]: <info> (wlan0): device state change: failed -> disconnected (reason 'node') [120 30 0]    
Dec 31 18:29:00 ToterLaptop NetworkManager[731]: <info> (wlan0): deactivating device (reason 'none') [0]        
Dec 31 18:29:03 ToterLaptop NetworkManager[731]: <info> (wlan0): device state change: disconnected -> unavailable (reason 'none') [30 20 0]        
Dec 31 18:29:03 ToterLaptop NetworkManager[731]: <info> (wlan0): deactivating device (reason 'none') [0]        
Dec 31 18:29:03 ToterLaptop NetworkManager[731]: <info> (wlan0): taking down device.        
Dec 31 18:29:03 ToterLaptop NetworkManager[731]: <info> WiFi hardware radio set disabled        
Dec 31 18:29:06 ToterLaptop kernel: [  658.337199] end_request: I/O error, dev fd0, sector 0       
Dec 31 18:29:06 ToterLaptop kernel: [  658.337206] Buffer I/O error on device fd0, logical block 0        
Dec 31 18:29:18 ToterLaptop kernel: [  670.508660] end_request: I/O error, dev fd0, sector 0        
Dec 31 18:29:18 ToterLaptop kernel: [  670.508667] Buffer I/O error on device fd0, logical block 0        
Dec 31 18:29:30 ToterLaptop kernel: [  682.677361] end_request: I/O error, dev fd0, sector 0        
Dec 31 18:29:30 ToterLaptop kernel: [  682.677368] Buffer I/O error on device fd0, logical block 0  
Dec 31 18:29:42 ToterLaptop kernel: [  694.845447] end_request: I/O error, dev fd0, sector 0    
Dec 31 18:29:42 ToterLaptop kernel: [  694.845453] Buffer I/O error on device fd0, logical block 0    
Dec 31 18:29:55 ToterLaptop kernel: [  707.021368] end_request: I/O error, dev fd0, sector 0
    
por user117880 31.12.2012 / 18:44

2 respostas

1

Tente isso no seu terminal.

1.uma lista de tarefas

Isso mostrará os serviços no seu sistema.

2.sudo rfkill desbloquear todos

Isso desbloqueará todos os serviços se alguém estiver bloqueado.

    
por str4n63r 13.02.2013 / 10:48
0

Também notei esse problema, mas apenas em um ponto de Wi-Fi durante a viagem. Não foi exatamente um problema do Ubuntu / Linux, já que a reinicialização para o Windows mostrou quase exatamente o mesmo comportamento.

Consegui obter uma conexão melhor em um Android, pelo menos, ele se conectaria de maneira confiável e o Wi-Fi seria interrompido após alguns minutos, não alguns segundos, como normalmente acontece com o cartão sem fio Killer.

Meu melhor palpite seria uma de duas coisas - o driver wireless não tem seu timeout configurado corretamente (não sei como você mudaria isso, exceto atualizando para um driver / kernel que corrigiu isso), ou há algum tipo de interferência que está afetando sua placa wireless mais do que outras?

    
por NoBugs 01.12.2013 / 04:03

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