Problema de conexão Wi-Fi

9

Este é um problema no 13.04 e é um problema com o wifi. O Ubuntu nunca se conectará à rede. Todos os meus outros dispositivos funcionam bem.

O computador detecta a rede e abre a caixa de diálogo de senha do wifi. Eu digito a senha correta, clique em ok e ele tenta se conectar por alguns segundos e depois pede a senha novamente. Estou usando um novo adaptador USB D-Link Wireless N 150 Pico que funciona bem no Windows para conectar-se à mesma rede.

Pesquisei no Google por algumas horas e não encontrei uma resposta, talvez alguém aqui possa ajudar?

syslog contém:

Sep  7 09:25:40 mike-ubuntu NetworkManager[986]: get_secret_flags: assertion `is_secret_prop (setting, secret_name, error)' failed
Sep  7 09:25:40 mike-ubuntu NetworkManager[986]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...
Sep  7 09:25:40 mike-ubuntu NetworkManager[986]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...
Sep  7 09:25:40 mike-ubuntu NetworkManager[986]: <info> (wlan0): device state change: need-auth -> prepare (reason 'none') [60 40 0]
Sep  7 09:25:40 mike-ubuntu NetworkManager[986]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...
Sep  7 09:25:40 mike-ubuntu NetworkManager[986]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.
Sep  7 09:25:40 mike-ubuntu NetworkManager[986]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting...
Sep  7 09:25:40 mike-ubuntu NetworkManager[986]: <info> (wlan0): device state change: prepare -> config (reason 'none') [40 50 0]
Sep  7 09:25:40 mike-ubuntu NetworkManager[986]: <info> Activation (wlan0/wireless): connection 'Wi-Fi connection 1' has security, and secrets exist.  No new secrets needed.
Sep  7 09:25:40 mike-ubuntu NetworkManager[986]: <info> Config: added 'ssid' value 'kaylag2'
Sep  7 09:25:40 mike-ubuntu NetworkManager[986]: <info> Config: added 'scan_ssid' value '1'
Sep  7 09:25:40 mike-ubuntu NetworkManager[986]: <info> Config: added 'key_mgmt' value 'WPA-PSK'
Sep  7 09:25:40 mike-ubuntu NetworkManager[986]: <info> Config: added 'psk' value '<omitted>'
Sep  7 09:25:40 mike-ubuntu NetworkManager[986]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete.
Sep  7 09:25:40 mike-ubuntu NetworkManager[986]: <info> Config: set interface ap_scan to 1
Sep  7 09:25:40 mike-ubuntu NetworkManager[986]: <info> (wlan0): supplicant interface state: inactive -> scanning
Sep  7 09:25:41 mike-ubuntu wpa_supplicant[1017]: wlan0: SME: Trying to authenticate with 00:13:10:e1:f9:a2 (SSID='kaylag2' freq=2437 MHz)
Sep  7 09:25:41 mike-ubuntu kernel: [ 1277.665268] wlan0: authenticate with 00:13:10:e1:f9:a2
Sep  7 09:25:41 mike-ubuntu NetworkManager[986]: <info> (wlan0): supplicant interface state: scanning -> authenticating
Sep  7 09:25:41 mike-ubuntu kernel: [ 1277.681287] wlan0: send auth to 00:13:10:e1:f9:a2 (try 1/3)
Sep  7 09:25:41 mike-ubuntu wpa_supplicant[1017]: wlan0: Trying to associate with 00:13:10:e1:f9:a2 (SSID='kaylag2' freq=2437 MHz)
Sep  7 09:25:41 mike-ubuntu kernel: [ 1277.686768] wlan0: authenticated
Sep  7 09:25:41 mike-ubuntu kernel: [ 1277.687005] rtl8192cu 1-1:1.0 wlan0: disabling HT/VHT due to WEP/TKIP use
Sep  7 09:25:41 mike-ubuntu kernel: [ 1277.687010] rtl8192cu 1-1:1.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
Sep  7 09:25:41 mike-ubuntu kernel: [ 1277.687014] rtl8192cu 1-1:1.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
Sep  7 09:25:41 mike-ubuntu kernel: [ 1277.688037] wlan0: associate with 00:13:10:e1:f9:a2 (try 1/3)
Sep  7 09:25:41 mike-ubuntu wpa_supplicant[1017]: wlan0: Associated with 00:13:10:e1:f9:a2
Sep  7 09:25:41 mike-ubuntu NetworkManager[986]: <info> (wlan0): supplicant interface state: authenticating -> associated
Sep  7 09:25:41 mike-ubuntu kernel: [ 1277.691496] wlan0: RX AssocResp from 00:13:10:e1:f9:a2 (capab=0x431 status=0 aid=12)
Sep  7 09:25:41 mike-ubuntu kernel: [ 1277.691541] wlan0: associated
Sep  7 09:25:41 mike-ubuntu NetworkManager[986]: <info> (wlan0): supplicant interface state: associated -> 4-way handshake
Sep  7 09:25:51 mike-ubuntu wpa_supplicant[1017]: wlan0: Authentication with 00:13:10:e1:f9:a2 timed out.
Sep  7 09:25:51 mike-ubuntu kernel: [ 1287.695734] wlan0: disassociating from 00:13:10:e1:f9:a2 by local choice (reason=3)
Sep  7 09:25:51 mike-ubuntu wpa_supplicant[1017]: wlan0: CTRL-EVENT-DISCONNECTED bssid=00:00:00:00:00:00 reason=3
Sep  7 09:25:51 mike-ubuntu NetworkManager[986]: <info> (wlan0): supplicant interface state: 4-way handshake -> disconnected
Sep  7 09:25:51 mike-ubuntu NetworkManager[986]: <info> Activation (wlan0/wireless): disconnected during association, asking for new key.
Sep  7 09:25:51 mike-ubuntu NetworkManager[986]: <info> (wlan0): device state change: config -> need-auth (reason 'supplicant-disconnect') [50 60 8]
Sep  7 09:25:51 mike-ubuntu kernel: [ 1287.711433] wlan0: deauthenticating from 00:13:10:e1:f9:a2 by local choice (reason=3)
Sep  7 09:25:51 mike-ubuntu kernel: [ 1287.712868] cfg80211: Calling CRDA to update world regulatory domain
Sep  7 09:25:51 mike-ubuntu kernel: [ 1287.783416] cfg80211: World regulatory domain updated:
Sep  7 09:25:51 mike-ubuntu kernel: [ 1287.783432] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
Sep  7 09:25:51 mike-ubuntu kernel: [ 1287.783439] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Sep  7 09:25:51 mike-ubuntu kernel: [ 1287.783445] cfg80211:   (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
Sep  7 09:25:51 mike-ubuntu kernel: [ 1287.783450] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
Sep  7 09:25:51 mike-ubuntu kernel: [ 1287.783456] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Sep  7 09:25:51 mike-ubuntu kernel: [ 1287.783461] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Sep  7 09:25:52 mike-ubuntu NetworkManager[986]: <info> (wlan0): supplicant interface state: disconnected -> inactive
Sep  7 09:26:12 mike-ubuntu kernel: [ 1308.420423] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
Sep  7 09:26:12 mike-ubuntu kernel: [ 1308.422269] sd 6:0:0:0: [sdb] Asking for cache data failed
Sep  7 09:26:12 mike-ubuntu kernel: [ 1308.422282] sd 6:0:0:0: [sdb] Assuming drive cache: write through

Tentei desativar o WPA no roteador e ele ainda não se conecta, apenas tentando diminuir o problema.

rede sudo lshw -C

* -network
description: Identificação física da interface sem fio: 1 informação de barramento: usb @ 1: 1 nome lógico: wlan0 serial: 14: d6: 4d: a7: 0d: 2e capacidades: ethernet configuração física sem fio: broadcast = driver sim = rtl8192cu driverversion = Firmware 3.8.0-19-genérico = link N / A = sem multicast = sim sem fio = IEEE 802.11bgn

syslog depois disso: sudo iw wlan0 set power_save off

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) starting connection 'Wi-Fi connection 1'

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> (wlan0): device state change: disconnected -> prepare (reason 'none') [30 40 0]

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting...

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> (wlan0): device state change: prepare -> config (reason 'none') [40 50 0]

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0/wireless): access point 'Wi-Fi connection 1' has security, but secrets are required.

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> (wlan0): device state change: config -> need-auth (reason 'none') [50 60 0]

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete.

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> (wlan0): device state change: need-auth -> prepare (reason 'none') [60 40 0]

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting...

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> (wlan0): device state change: prepare -> config (reason 'none') [40 50 0]

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0/wireless): connection 'Wi-Fi connection 1' has security, and secrets exist.  No new secrets needed.

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Config: added 'ssid' value 'kaylag2'

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Config: added 'scan_ssid' value '1'

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Config: added 'key_mgmt' value 'WPA-PSK'

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Config: added 'psk' value '<omitted>'

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete.

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> Config: set interface ap_scan to 1

Sep  7 11:59:52 mike-ubuntu NetworkManager[969]: <info> (wlan0): supplicant interface state: inactive -> scanning

Sep  7 11:59:53 mike-ubuntu wpa_supplicant[1193]: wlan0: SME: Trying to authenticate with 00:13:10:e1:f9:a2 (SSID='kaylag2' freq=2437 MHz)

Sep  7 11:59:53 mike-ubuntu kernel: [ 1331.829097] wlan0: authenticate with 00:13:10:e1:f9:a2

Sep  7 11:59:53 mike-ubuntu NetworkManager[969]: <info> (wlan0): supplicant interface state: scanning -> authenticating

Sep  7 11:59:53 mike-ubuntu kernel: [ 1331.844435] wlan0: send auth to 00:13:10:e1:f9:a2 (try 1/3)

Sep  7 11:59:53 mike-ubuntu kernel: [ 1332.048053] wlan0: send auth to 00:13:10:e1:f9:a2 (try 2/3)

Sep  7 11:59:53 mike-ubuntu kernel: [ 1332.051835] wlan0: authenticated

Sep  7 11:59:53 mike-ubuntu kernel: [ 1332.052717] rtl8192cu 1-1:1.0 wlan0: disabling HT/VHT due to WEP/TKIP use

Sep  7 11:59:53 mike-ubuntu kernel: [ 1332.052779] rtl8192cu 1-1:1.0 wlan0: disabling HT as WMM/QoS is not supported by the AP

Sep  7 11:59:53 mike-ubuntu kernel: [ 1332.052786] rtl8192cu 1-1:1.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP

Sep  7 11:59:53 mike-ubuntu wpa_supplicant[1193]: wlan0: Trying to associate with 00:13:10:e1:f9:a2 (SSID='kaylag2' freq=2437 MHz)

Sep  7 11:59:53 mike-ubuntu kernel: [ 1332.056098] wlan0: associate with 00:13:10:e1:f9:a2 (try 1/3)

Sep  7 11:59:53 mike-ubuntu NetworkManager[969]: <info> (wlan0): supplicant interface state: authenticating -> associating

Sep  7 11:59:53 mike-ubuntu wpa_supplicant[1193]: wlan0: Associated with 00:13:10:e1:f9:a2

Sep  7 11:59:53 mike-ubuntu kernel: [ 1332.089970] wlan0: RX AssocResp from 00:13:10:e1:f9:a2 (capab=0x431 status=0 aid=12)

Sep  7 11:59:53 mike-ubuntu kernel: [ 1332.090161] wlan0: associated

Sep  7 11:59:53 mike-ubuntu NetworkManager[969]: <info> (wlan0): supplicant interface state: associating -> 4-way handshake

Sep  7 12:00:03 mike-ubuntu wpa_supplicant[1193]: wlan0: Authentication with 00:13:10:e1:f9:a2 timed out.

Sep  7 12:00:03 mike-ubuntu kernel: [ 1342.094561] wlan0: disassociating from 00:13:10:e1:f9:a2 by local choice (reason=3)

Sep  7 12:00:03 mike-ubuntu wpa_supplicant[1193]: wlan0: CTRL-EVENT-DISCONNECTED bssid=00:00:00:00:00:00 reason=3

Sep  7 12:00:03 mike-ubuntu NetworkManager[969]: <info> (wlan0): supplicant interface state: 4-way handshake -> disconnected

Sep  7 12:00:03 mike-ubuntu NetworkManager[969]: <info> Activation (wlan0/wireless): disconnected during association, asking for new key.

Sep  7 12:00:03 mike-ubuntu NetworkManager[969]: <info> (wlan0): device state change: config -> need-auth (reason 'supplicant-disconnect') [50 60 8]

Sep  7 12:00:03 mike-ubuntu kernel: [ 1342.106375] wlan0: deauthenticating from 00:13:10:e1:f9:a2 by local choice (reason=3)

Sep  7 12:00:03 mike-ubuntu kernel: [ 1342.112407] cfg80211: Calling CRDA to update world regulatory domain

Sep  7 12:00:03 mike-ubuntu kernel: [ 1342.164006] cfg80211: World regulatory domain updated:

Sep  7 12:00:03 mike-ubuntu kernel: [ 1342.164102] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)

Sep  7 12:00:03 mike-ubuntu kernel: [ 1342.164109] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

Sep  7 12:00:03 mike-ubuntu kernel: [ 1342.164116] cfg80211:   (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)

Sep  7 12:00:03 mike-ubuntu kernel: [ 1342.164121] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)

Sep  7 12:00:03 mike-ubuntu kernel: [ 1342.164127] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

Sep  7 12:00:03 mike-ubuntu kernel: [ 1342.164132] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)

ok, para tentar diminuir o problema, pensei que talvez o sinal estivesse muito fraco, então mudei o ponto de acesso para mais perto, desabilitei também a segurança e tentei conectar-me novamente e ainda sem sorte. Não tenho certeza se há algo que se destaque aqui:

Sep  7 12:27:36 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) starting connection 'kaylag2'
Sep  7 12:27:36 mike-ubuntu NetworkManager[868]: <info> (wlan0): device state change: disconnected -> prepare (reason 'none') [30 40 0]
Sep  7 12:27:36 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...
Sep  7 12:27:36 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...
Sep  7 12:27:36 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...
Sep  7 12:27:36 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.
Sep  7 12:27:36 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting...
Sep  7 12:27:36 mike-ubuntu NetworkManager[868]: <info> (wlan0): device state change: prepare -> config (reason 'none') [40 50 0]
Sep  7 12:27:36 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0/wireless): connection 'kaylag2' requires no security.  No secrets needed.
Sep  7 12:27:36 mike-ubuntu NetworkManager[868]: <info> Config: added 'ssid' value 'kaylag2'
Sep  7 12:27:36 mike-ubuntu NetworkManager[868]: <info> Config: added 'scan_ssid' value '1'
Sep  7 12:27:36 mike-ubuntu NetworkManager[868]: <info> Config: added 'key_mgmt' value 'NONE'
Sep  7 12:27:36 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete.
Sep  7 12:27:36 mike-ubuntu NetworkManager[868]: <info> Config: set interface ap_scan to 1
Sep  7 12:27:36 mike-ubuntu NetworkManager[868]: <info> (wlan0): supplicant interface state: inactive -> scanning
Sep  7 12:27:37 mike-ubuntu wpa_supplicant[906]: wlan0: SME: Trying to authenticate with 00:13:10:e1:f9:a2 (SSID='kaylag2' freq=2437 MHz)
Sep  7 12:27:37 mike-ubuntu kernel: [  115.581772] wlan0: authenticate with 00:13:10:e1:f9:a2
Sep  7 12:27:37 mike-ubuntu NetworkManager[868]: <info> (wlan0): supplicant interface state: scanning -> authenticating
Sep  7 12:27:37 mike-ubuntu kernel: [  115.620391] wlan0: send auth to 00:13:10:e1:f9:a2 (try 1/3)
Sep  7 12:27:37 mike-ubuntu wpa_supplicant[906]: wlan0: Trying to associate with 00:13:10:e1:f9:a2 (SSID='kaylag2' freq=2437 MHz)
Sep  7 12:27:37 mike-ubuntu kernel: [  115.630642] wlan0: authenticated
Sep  7 12:27:37 mike-ubuntu kernel: [  115.631154] rtl8192cu 1-1:1.0 wlan0: disabling HT as WMM/QoS is not supported by the AP
Sep  7 12:27:37 mike-ubuntu kernel: [  115.631164] rtl8192cu 1-1:1.0 wlan0: disabling VHT as WMM/QoS is not supported by the AP
Sep  7 12:27:37 mike-ubuntu kernel: [  115.632450] wlan0: associate with 00:13:10:e1:f9:a2 (try 1/3)
Sep  7 12:27:37 mike-ubuntu NetworkManager[868]: <info> (wlan0): supplicant interface state: authenticating -> associating
Sep  7 12:27:37 mike-ubuntu wpa_supplicant[906]: wlan0: Associated with 00:13:10:e1:f9:a2
Sep  7 12:27:37 mike-ubuntu wpa_supplicant[906]: wlan0: CTRL-EVENT-CONNECTED - Connection to 00:13:10:e1:f9:a2 completed (auth) [id=0 id_str=]
Sep  7 12:27:37 mike-ubuntu kernel: [  115.642953] wlan0: RX AssocResp from 00:13:10:e1:f9:a2 (capab=0x421 status=0 aid=4)
Sep  7 12:27:37 mike-ubuntu kernel: [  115.643075] wlan0: associated
Sep  7 12:27:37 mike-ubuntu kernel: [  115.643160] IPv6: ADDRCONF(NETDEV_CHANGE): wlan0: link becomes ready
Sep  7 12:27:37 mike-ubuntu NetworkManager[868]: <info> (wlan0): supplicant interface state: associating -> completed
Sep  7 12:27:37 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0/wireless) Stage 2 of 5 (Device Configure) successful.  Connected to wireless network 'kaylag2'.
Sep  7 12:27:37 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) scheduled.
Sep  7 12:27:37 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) started...
Sep  7 12:27:37 mike-ubuntu NetworkManager[868]: <info> (wlan0): device state change: config -> ip-config (reason 'none') [50 70 0]
Sep  7 12:27:37 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Beginning DHCPv4 transaction (timeout in 45 seconds)
Sep  7 12:27:37 mike-ubuntu NetworkManager[868]: <info> dhclient started with pid 2201
Sep  7 12:27:37 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Beginning IP6 addrconf.
Sep  7 12:27:37 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) complete.
Sep  7 12:27:37 mike-ubuntu dhclient: Internet Systems Consortium DHCP Client 4.2.4
Sep  7 12:27:37 mike-ubuntu dhclient: Copyright 2004-2012 Internet Systems Consortium.
Sep  7 12:27:37 mike-ubuntu dhclient: All rights reserved.
Sep  7 12:27:37 mike-ubuntu dhclient: For info, please visit https://www.isc.org/software/dhcp/
Sep  7 12:27:37 mike-ubuntu dhclient: 
Sep  7 12:27:37 mike-ubuntu dhclient: Listening on LPF/wlan0/14:d6:4d:a7:0d:2e
Sep  7 12:27:37 mike-ubuntu NetworkManager[868]: <info> (wlan0): DHCPv4 state changed nbi -> preinit
Sep  7 12:27:37 mike-ubuntu dhclient: Sending on   LPF/wlan0/14:d6:4d:a7:0d:2e
Sep  7 12:27:37 mike-ubuntu dhclient: Sending on   Socket/fallback
Sep  7 12:27:37 mike-ubuntu dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 3 (xid=0x2a921615)
Sep  7 12:27:39 mike-ubuntu avahi-daemon[864]: Joining mDNS multicast group on interface wlan0.IPv6 with address fe80::16d6:4dff:fea7:d2e.
Sep  7 12:27:39 mike-ubuntu avahi-daemon[864]: New relevant interface wlan0.IPv6 for mDNS.
Sep  7 12:27:39 mike-ubuntu avahi-daemon[864]: Registering new address record for fe80::16d6:4dff:fea7:d2e on wlan0.*.
Sep  7 12:27:40 mike-ubuntu dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 4 (xid=0x2a921615)
Sep  7 12:27:44 mike-ubuntu dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 10 (xid=0x2a921615)
Sep  7 12:27:54 mike-ubuntu dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 10 (xid=0x2a921615)
Sep  7 12:27:57 mike-ubuntu NetworkManager[868]: <info> (wlan0): IP6 addrconf timed out or failed.
Sep  7 12:27:57 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) scheduled...
Sep  7 12:27:57 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) started...
Sep  7 12:27:57 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 4 of 5 (IPv6 Configure Timeout) complete.
Sep  7 12:28:04 mike-ubuntu dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 10 (xid=0x2a921615)
Sep  7 12:28:14 mike-ubuntu dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 15 (xid=0x2a921615)
Sep  7 12:28:20 mike-ubuntu kernel: [  158.449728] sd 6:0:0:0: [sdb] Test WP failed, assume Write Enabled
Sep  7 12:28:20 mike-ubuntu kernel: [  158.451338] sd 6:0:0:0: [sdb] Asking for cache data failed
Sep  7 12:28:20 mike-ubuntu kernel: [  158.451348] sd 6:0:0:0: [sdb] Assuming drive cache: write through
Sep  7 12:28:22 mike-ubuntu NetworkManager[868]: <warn> (wlan0): DHCPv4 request timed out.
Sep  7 12:28:22 mike-ubuntu NetworkManager[868]: <info> (wlan0): canceled DHCP transaction, DHCP client pid 2201
Sep  7 12:28:22 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 4 of 5 (IPv4 Configure Timeout) scheduled...
Sep  7 12:28:22 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 4 of 5 (IPv4 Configure Timeout) started...
Sep  7 12:28:22 mike-ubuntu NetworkManager[868]: <info> (wlan0): device state change: ip-config -> failed (reason 'ip-config-unavailable') [70 120 5]
Sep  7 12:28:22 mike-ubuntu NetworkManager[868]: <warn> Activation (wlan0) failed for connection 'kaylag2'
Sep  7 12:28:22 mike-ubuntu NetworkManager[868]: <info> Activation (wlan0) Stage 4 of 5 (IPv4 Configure Timeout) complete.
Sep  7 12:28:22 mike-ubuntu NetworkManager[868]: <info> (wlan0): device state change: failed -> disconnected (reason 'none') [120 30 0]
Sep  7 12:28:22 mike-ubuntu NetworkManager[868]: <info> (wlan0): deactivating device (reason 'none') [0]
Sep  7 12:28:22 mike-ubuntu avahi-daemon[864]: Withdrawing address record for fe80::16d6:4dff:fea7:d2e on wlan0.
Sep  7 12:28:22 mike-ubuntu avahi-daemon[864]: Leaving mDNS multicast group on interface wlan0.IPv6 with address fe80::16d6:4dff:fea7:d2e.
Sep  7 12:28:22 mike-ubuntu avahi-daemon[864]: Interface wlan0.IPv6 no longer relevant for mDNS.
Sep  7 12:28:22 mike-ubuntu kernel: [  161.024993] wlan0: deauthenticating from 00:13:10:e1:f9:a2 by local choice (reason=3)
Sep  7 12:28:22 mike-ubuntu wpa_supplicant[906]: wlan0: CTRL-EVENT-DISCONNECTED bssid=00:00:00:00:00:00 reason=3
Sep  7 12:28:22 mike-ubuntu kernel: [  161.040777] cfg80211: Calling CRDA to update world regulatory domain
Sep  7 12:28:22 mike-ubuntu NetworkManager[868]: <info> (wlan0): supplicant interface state: completed -> disconnected
Sep  7 12:28:22 mike-ubuntu kernel: [  161.132211] cfg80211: World regulatory domain updated:
Sep  7 12:28:22 mike-ubuntu kernel: [  161.132227] cfg80211:   (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
Sep  7 12:28:22 mike-ubuntu kernel: [  161.132231] cfg80211:   (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Sep  7 12:28:22 mike-ubuntu kernel: [  161.132234] cfg80211:   (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
Sep  7 12:28:22 mike-ubuntu kernel: [  161.132237] cfg80211:   (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
Sep  7 12:28:22 mike-ubuntu kernel: [  161.132239] cfg80211:   (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Sep  7 12:28:22 mike-ubuntu kernel: [  161.132242] cfg80211:   (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Sep  7 12:28:23 mike-ubuntu avahi-daemon[864]: Joining mDNS multicast group on interface wlan0.IPv6 with address fe80::16d6:4dff:fea7:d2e.
Sep  7 12:28:23 mike-ubuntu avahi-daemon[864]: New relevant interface wlan0.IPv6 for mDNS.
Sep  7 12:28:23 mike-ubuntu avahi-daemon[864]: Registering new address record for fe80::16d6:4dff:fea7:d2e on wlan0.*.
13.04  wireless 
— user190911
fonte
talvez o mesmo problema aqui? askubuntu.com/questions/363196/…
— pragmatic_programmer
Na minha Inspiron N4010, sudo tail -f /var/log/syslogexibe: muito longa para ser incluída em um comentário
— PHP Learner
Eu tenho um problema semelhante no meu Ubuntu 13.10 com dois laptops DELL diferentes, um é o Inspiron N4010 e o outro é o Latitude D630. Estou certo de que o problema é o mesmo nos dois laptops, mas o problema é sobre a conexão WiFi às redes dos dois. <br/> Meus laptops não tiveram problemas com as redes sem fio antes de atualizar para a 13.10. Existe uma solução final para todos os problemas de WiFi do Ubuntu 13.10?
— PHP Learner

Respostas:

6

Você pode tentar desativar a economia de energia sem fio que tende a desconectar o cartão muito cedo:

sudo iw wlan0 set power_save off

Edit: Mais algumas sugestões ...

A partir da saída que você enviou, pode ser que o ipv6 esteja falhando na conexão

Editar conexões> escolha sua rede e clique em editar> guia IPV6> defina o método para "ignorar"

Vi outros threads com pessoas com problemas nos certificados: Autenticação em rede sem fio

  sudo nano /etc/NetworkManager/system-connections/YOUR-NETWORK-NAME

e comente a linha (coloque um # na frente de) system-ca-cert = true

Poderia ser um problema de firmware para o seu adaptador usb? Você pode tentar se conectar via cabo Ethernet e fazer uma atualização via atualizador de software.

Última coisa que vem à mente, basta excluir a conexão atual e começar de novo ...

Vamos saber como foi

— wranvaud
fonte
Isso não funcionou, você tem outras sugestões? I adicionado a saída para a questão acima
— user190911
4
Desabilitar o IPv6 na rede corrigiu o problema para mim, ótimo! Muito misterioso por que isso seria um fracasso como este no entanto ...
— anarcat
11
iw wlan0 set power_save off funcionou para o meu Broadcom BCM4313
— iniciante
2

Como posso ver, o dhclient não pode recuperar o IP do roteador. Pelo menos IPv6. Portanto, tente configurar o IPv6 para "ignorar" e / ou ativar / desativar o uso do IPv6 / IPv4. Tudo isso não me ajudou (eu tenho o mesmo log). Eu configurei o IPv4 manualmente. Como primeiro, defino um IP aleatório e apenas conecto ao roteador. Aqui não tenho Internet, mas estou conectado ao roteador. Então, eu nmaptei a rede para encontrar o IP do roteador: nmap 192.168.0.0/23 E depois configurei o IP do roteador como gateway.

Esta não é uma solução para todas as situações, mas hoje à noite me ajudou a me conectar ao wi-fi gratuito do hotel. Também tive que definir o DNS. Eu usei o Google Public DNS, mas você pode definir qualquer outro.

— Дмитрий
fonte
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