Aleatório desconecta com um Atheros AR5008

Question

A maior parte da minha rede sem fio funciona perfeitamente. Mas uma vez por dia, em momentos aleatórios, eu me desconecto e a autenticação de porta-chaves para o meu wireless aparece. Todas as informações corretas são inseridas no conjunto de chaves, mas quando eu clico em conectar, não há êxito em reconectar à rede e a janela de autenticação é exibida novamente. A rede está funcionando e este é o único computador afetado. Isso é resolvido reiniciando meu computador, mas é uma máquina de produção, por isso ter que parar o que estou trabalhando e reiniciar fica bastante frustrante.

Aqui está a tela que aparece:

A placa wireless é um D-link Xtreme N DWA-552

Aqui está a saída do log quando o problema acontece:

Dec  8 17:51:16 Gandhi NetworkManager[951]: <info> (wlan0): supplicant connection state:  disconnected -> scanning

Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> (wlan0): device state change: 8 -> 3 (reason 11)

Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> (wlan0): deactivating device (reason: 11).

Dec  8 17:51:31 Gandhi avahi-daemon[954]: Withdrawing address record for 192.168.1.125 on wlan0.

Dec  8 17:51:31 Gandhi avahi-daemon[954]: Leaving mDNS multicast group on interface wlan0.IPv4 with address 192.168.1.125.

Dec  8 17:51:31 Gandhi avahi-daemon[954]: Interface wlan0.IPv4 no longer relevant for mDNS.

Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> Activation (wlan0) starting connection 'Auto James'

Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> (wlan0): device state change: 3 -> 4 (reason 0)

Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...

Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> (wlan0): supplicant connection state:  scanning -> disconnected

Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...

Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...

Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.

Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> Activation (wlan0) Stage 2 of 5 >(Device Configure) starting...

Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> (wlan0): device state change: 4 -> 5 (reason 0)
Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> Activation (wlan0/wireless): access point 'Auto James' has security, but secrets are required.

Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> (wlan0): device state change: 5 -> 6 (reason 0)

Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete.

Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...

Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...

Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> (wlan0): device state change: 6 -> 4 (reason 0)
Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...

Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.

Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting...

Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> (wlan0): device state change: 4 -> 5 (reason 0)

Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> Activation (wlan0/wireless): connection 'Auto James' has security, and secrets exist.  No new secrets needed.

Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> Config: added 'ssid' value 'James'

Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> Config: added 'scan_ssid' value '1'

Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> Config: added 'key_mgmt' value 'WPA-PSK'

Dec  8 17:51:31 Gandhi NetworkManager[951]: <info> Config: added 'psk' value '<omitted>'

Dec  8 17:51:31 Gandhi NetworkManager[951]: nm_setting_802_1x_get_pkcs11_engine_path: assertion 'NM_IS_SETTING_802_1X (setting)' failed

Dec  8 17:51:31 Gandhi NetworkManager[951]: nm_setting_802_1x_get_pkcs11_module_path: assertion 'NM_IS_SETTING_802_1X (setting)' failed

Aqui está a saída do lspci -nn, referente ao meu adaptador sem fio:

03:07.0 Network controller [0280]: Atheros Communications Inc. AR5008 Wireless Network Adapter [168c:0023] (rev 01)

E aqui está a saída da rede sudo lshw -class:

*-network
   description: Wireless interface
   product: AR5008 Wireless Network Adapter
   vendor: Atheros Communications Inc.
   physical id: 7
   bus info: pci@0000:03:07.0
   logical name: wlan0
   version: 01
   serial: 00:1e:58:3b:18:19
   width: 32 bits
   clock: 66MHz
   capabilities: bus_master cap_list ethernet physical wireless
   configuration: broadcast=yes driver=ath9k driverversion=2.6.38-13-generic firmware=N/A ip=192.168.1.125 latency=168 link=yes multicast=yes wireless=IEEE 802.11bgn
   resources: irq:21 memory:fdee0000-fdeeffff

lista de tarefas:

0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no

Por favor, ajude!

UPDATE: VLC parece tornar este problema mais frequente. Ele estava ocorrendo apenas uma vez por dia em condições normais, mas quando eu estava executando o VLC ontem, ele caiu várias vezes em um período muito mais curto. Não tenho certeza se isso está relacionado, mas é muito estranho ...

    

Answer 1

Eu tenho esse problema também, no meu MacBook 2,1. Não há muito o que fazer, mas você pode redefinir o módulo e, pelo menos, funcionará novamente.

sudo sh -c 'rmmod ath9k; restart network-manager; modprobe ath9k'