Wi-Fi: пропадает интернет без обрыва коннекта между ноутом и роутером

[Red Sunset]

Странная проблема возникает по несколько раз в день. Коннекчусь по вайфай, через неопределенное время на ноуте пропадает интернет, при этом коннект к роутеру не рвется. Более того в этот момент (когда на ноуте нет интернета) на роутере есть интернет (проверял, коннектился коммуникатором к роутеру). На ноуте принудительно переконнекчиваюсь к роутеру, интернет на ноуте появляется. Более того, пробовал удалять network-manager и использовать wicd. Проблема воспроизводится и с wicd.

ноут: Acer Aspire 3820TG
роутер: WL-500G Premium v2
os: Ubuntu 11.04 (2.6.38-11-generic)
network-manager 0.8.4~git.20110319t175609.d14809b-0ubuntu3

В сислоге ничего подозрительного не вижу.

Дисконнект от роутера:

Код: [Выделить]

Jul 25 16:16:51 ap-acer NetworkManager[1026]: <info> (wlan0): device state change: 8 -> 3 (reason 39)
Jul 25 16:16:51 ap-acer NetworkManager[1026]: <info> (wlan0): deactivating device (reason: 39).
Jul 25 16:16:51 ap-acer NetworkManager[1026]: <info> (wlan0): canceled DHCP transaction, DHCP client pid 22482
Jul 25 16:16:51 ap-acer kernel: [132401.886040] wlan0: deauthenticating from e0:cb:4e:4f:34:2c by local choice (reason=3)
Jul 25 16:16:51 ap-acer kernel: [132402.121285] cfg80211: All devices are disconnected, going to restore regulatory settings
Jul 25 16:16:51 ap-acer kernel: [132402.121295] cfg80211: Restoring regulatory settings
Jul 25 16:16:51 ap-acer kernel: [132402.121316] cfg80211: Calling CRDA to update world regulatory domain
Jul 25 16:16:51 ap-acer wpa_supplicant[1108]: CTRL-EVENT-DISCONNECTED bssid=00:00:00:00:00:00 reason=0
Jul 25 16:16:51 ap-acer avahi-daemon[1018]: Withdrawing address record for 192.168.1.101 on wlan0.
Jul 25 16:16:51 ap-acer avahi-daemon[1018]: Leaving mDNS multicast group on interface wlan0.IPv4 with address 192.168.1.101.
Jul 25 16:16:51 ap-acer avahi-daemon[1018]: Interface wlan0.IPv4 no longer relevant for mDNS.
Jul 25 16:16:51 ap-acer kernel: [132402.212014] cfg80211: Ignoring regulatory request Set by core since the driver uses its own custom regulatory domain
Jul 25 16:16:51 ap-acer kernel: [132402.212022] cfg80211: World regulatory domain updated:
Jul 25 16:16:51 ap-acer kernel: [132402.212024] cfg80211:     (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
Jul 25 16:16:51 ap-acer kernel: [132402.212027] cfg80211:     (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Jul 25 16:16:51 ap-acer kernel: [132402.212030] cfg80211:     (2457000 KHz - 2482000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
Jul 25 16:16:51 ap-acer kernel: [132402.212032] cfg80211:     (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
Jul 25 16:16:51 ap-acer kernel: [132402.212034] cfg80211:     (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Jul 25 16:16:51 ap-acer kernel: [132402.212036] cfg80211:     (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
Jul 25 16:17:01 ap-acer CRON[13783]: (root) CMD (   cd / && run-parts --report /etc/cron.hourly)

Коннект к роутеру:

Код: [Выделить]

Jul 25 16:17:17 ap-acer NetworkManager[1026]: user_connection_updated_cb: assertion `old_connection != NULL' failed
Jul 25 16:17:17 ap-acer NetworkManager[1026]: <info> Activation (wlan0) starting connection 'Auto pole'
Jul 25 16:17:17 ap-acer NetworkManager[1026]: <info> (wlan0): device state change: 3 -> 4 (reason 0)
Jul 25 16:17:17 ap-acer NetworkManager[1026]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...
Jul 25 16:17:17 ap-acer NetworkManager[1026]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...
Jul 25 16:17:17 ap-acer NetworkManager[1026]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...
Jul 25 16:17:17 ap-acer NetworkManager[1026]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.
Jul 25 16:17:17 ap-acer NetworkManager[1026]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting...
Jul 25 16:17:17 ap-acer NetworkManager[1026]: <info> (wlan0): device state change: 4 -> 5 (reason 0)
Jul 25 16:17:17 ap-acer NetworkManager[1026]: <info> Activation (wlan0/wireless): access point 'Auto pole' has security, but secrets are required.
Jul 25 16:17:17 ap-acer NetworkManager[1026]: <info> (wlan0): device state change: 5 -> 6 (reason 0)
Jul 25 16:17:17 ap-acer NetworkManager[1026]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete.
Jul 25 16:17:26 ap-acer NetworkManager[1026]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled...
Jul 25 16:17:26 ap-acer NetworkManager[1026]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started...
Jul 25 16:17:26 ap-acer NetworkManager[1026]: <info> (wlan0): device state change: 6 -> 4 (reason 0)
Jul 25 16:17:26 ap-acer NetworkManager[1026]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled...
Jul 25 16:17:26 ap-acer NetworkManager[1026]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete.
Jul 25 16:17:26 ap-acer NetworkManager[1026]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting...
Jul 25 16:17:26 ap-acer NetworkManager[1026]: <info> (wlan0): device state change: 4 -> 5 (reason 0)
Jul 25 16:17:26 ap-acer NetworkManager[1026]: <info> Activation (wlan0/wireless): connection 'Auto pole' has security, and secrets exist.  No new secrets needed.
Jul 25 16:17:26 ap-acer NetworkManager[1026]: <info> Config: added 'ssid' value 'pole'
Jul 25 16:17:26 ap-acer NetworkManager[1026]: <info> Config: added 'scan_ssid' value '1'
Jul 25 16:17:26 ap-acer NetworkManager[1026]: <info> Config: added 'key_mgmt' value 'WPA-PSK'
Jul 25 16:17:26 ap-acer NetworkManager[1026]: <info> Config: added 'psk' value '<omitted>'
Jul 25 16:17:26 ap-acer NetworkManager[1026]: nm_setting_802_1x_get_pkcs11_engine_path: assertion `NM_IS_SETTING_802_1X (setting)' failed
Jul 25 16:17:26 ap-acer NetworkManager[1026]: nm_setting_802_1x_get_pkcs11_module_path: assertion `NM_IS_SETTING_802_1X (setting)' failed
Jul 25 16:17:26 ap-acer NetworkManager[1026]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) complete.
Jul 25 16:17:26 ap-acer NetworkManager[1026]: <info> Config: set interface ap_scan to 1
Jul 25 16:17:26 ap-acer NetworkManager[1026]: <info> (wlan0): supplicant connection state:  disconnected -> scanning
Jul 25 16:17:27 ap-acer wpa_supplicant[1108]: Trying to associate with e0:cb:4e:4f:34:2c (SSID='pole' freq=2412 MHz)
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info> (wlan0): supplicant connection state:  scanning -> associating
Jul 25 16:17:27 ap-acer kernel: [132437.673534] wlan0: authenticate with e0:cb:4e:4f:34:2c (try 1)
Jul 25 16:17:27 ap-acer kernel: [132437.675648] wlan0: authenticated
Jul 25 16:17:27 ap-acer kernel: [132437.692339] wlan0: associate with e0:cb:4e:4f:34:2c (try 1)
Jul 25 16:17:27 ap-acer wpa_supplicant[1108]: Associated with e0:cb:4e:4f:34:2c
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info> (wlan0): supplicant connection state:  associating -> associated
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info> (wlan0): supplicant connection state:  associated -> 4-way handshake
Jul 25 16:17:27 ap-acer kernel: [132437.694824] wlan0: RX AssocResp from e0:cb:4e:4f:34:2c (capab=0x411 status=0 aid=1)
Jul 25 16:17:27 ap-acer kernel: [132437.694832] wlan0: associated
Jul 25 16:17:27 ap-acer wpa_supplicant[1108]: WPA: Key negotiation completed with e0:cb:4e:4f:34:2c [PTK=CCMP GTK=TKIP]
Jul 25 16:17:27 ap-acer wpa_supplicant[1108]: CTRL-EVENT-CONNECTED - Connection to e0:cb:4e:4f:34:2c completed (reauth) [id=0 id_str=]
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info> (wlan0): supplicant connection state:  4-way handshake -> group handshake
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info> (wlan0): supplicant connection state:  group handshake -> completed
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info> Activation (wlan0/wireless) Stage 2 of 5 (Device Configure) successful.  Connected to wireless network 'pole'.
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) scheduled.
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) started...
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info> (wlan0): device state change: 5 -> 7 (reason 0)
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info> Activation (wlan0) Beginning DHCPv4 transaction (timeout in 45 seconds)
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info> dhclient started with pid 14168
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info> Activation (wlan0) Stage 3 of 5 (IP Configure Start) complete.
Jul 25 16:17:27 ap-acer dhclient: Internet Systems Consortium DHCP Client 4.1.1-P1
Jul 25 16:17:27 ap-acer dhclient: Copyright 2004-2010 Internet Systems Consortium.
Jul 25 16:17:27 ap-acer dhclient: All rights reserved.
Jul 25 16:17:27 ap-acer dhclient: For info, please visit https://www.isc.org/software/dhcp/
Jul 25 16:17:27 ap-acer dhclient:
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info> (wlan0): DHCPv4 state changed nbi -> preinit
Jul 25 16:17:27 ap-acer dhclient: Listening on LPF/wlan0/c4:46:19:64:c5:84
Jul 25 16:17:27 ap-acer dhclient: Sending on   LPF/wlan0/c4:46:19:64:c5:84
Jul 25 16:17:27 ap-acer dhclient: Sending on   Socket/fallback
Jul 25 16:17:27 ap-acer dhclient: DHCPDISCOVER on wlan0 to 255.255.255.255 port 67 interval 3
Jul 25 16:17:27 ap-acer dhclient: DHCPOFFER of 192.168.1.101 from 192.168.1.1
Jul 25 16:17:27 ap-acer dhclient: DHCPREQUEST of 192.168.1.101 on wlan0 to 255.255.255.255 port 67
Jul 25 16:17:27 ap-acer dhclient: DHCPACK of 192.168.1.101 from 192.168.1.1
Jul 25 16:17:27 ap-acer dhclient: bound to 192.168.1.101 -- renewal in 33587 seconds.
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info> (wlan0): DHCPv4 state changed preinit -> bound
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info> Activation (wlan0) Stage 4 of 5 (IP4 Configure Get) scheduled...
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info> Activation (wlan0) Stage 4 of 5 (IP4 Configure Get) started...
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info>   address 192.168.1.101
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info>   prefix 24 (255.255.255.0)
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info>   gateway 192.168.1.1
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info>   hostname 'ap-acer'
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info>   nameserver '192.168.1.1'
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info> Scheduling stage 5
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info> Activation (wlan0) Stage 5 of 5 (IP Configure Commit) scheduled...
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info> Done scheduling stage 5
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info> Activation (wlan0) Stage 4 of 5 (IP4 Configure Get) complete.
Jul 25 16:17:27 ap-acer NetworkManager[1026]: <info> Activation (wlan0) Stage 5 of 5 (IP Configure Commit) started...
Jul 25 16:17:27 ap-acer avahi-daemon[1018]: Joining mDNS multicast group on interface wlan0.IPv4 with address 192.168.1.101.
Jul 25 16:17:27 ap-acer avahi-daemon[1018]: New relevant interface wlan0.IPv4 for mDNS.
Jul 25 16:17:27 ap-acer avahi-daemon[1018]: Registering new address record for 192.168.1.101 on wlan0.IPv4.
Jul 25 16:17:28 ap-acer NetworkManager[1026]: <info> (wlan0): device state change: 7 -> 8 (reason 0)
Jul 25 16:17:28 ap-acer NetworkManager[1026]: <info> Policy set 'Auto pole' (wlan0) as default for IPv4 routing and DNS.
Jul 25 16:17:28 ap-acer NetworkManager[1026]: <info> Activation (wlan0) successful, device activated.
Jul 25 16:17:28 ap-acer NetworkManager[1026]: <info> Activation (wlan0) Stage 5 of 5 (IP Configure Commit) complete.
Jul 25 16:17:38 ap-acer ntpdate[14252]: adjust time server 91.189.94.4 offset 0.044011 sec

[alexizeltsa]

похожая проблема
дома два ноута и вайфай роутер.
на ноуте с 11.04 убунтой периодически отваливается подключение к роутеру (чаще всего он некоторое время ищет подключение и опять коннектится, но случается, что и полностью отваливается).
на другом ноуте с виндоус все работает норм.

[Red Sunset]

Вынесла мне мозг Ubuntu на этом ноуте. Одни проблемы. После того как в очередной раз Ubuntu перестала грузится, поставил Windows 7... Буду мучится пока ноут не поменяю 

[ArcFi]

Надо проверять пинг по ip, смотреть ifconfig до и после обрыва, смотреть настройки подключения вообще и dns в частности.