Seit dem Upgrade (Neuinstallation) auf Trusty (Kubuntu- EDIT und jetzt Ubuntu Vanilla ) sind mir Netzwerkprobleme aufgefallen.
Genau alle zwei Minuten bricht mein Netzwerk für einen Moment zusammen, geht dann aber in Kürze wieder online. Dies spiegelt sich deutlich im Syslog wider:
Apr 24 07:52:45 jordan-TECRA-R840 wpa_supplicant[1271]: wlan0: CTRL-EVENT-SCAN-STARTED
Apr 24 07:52:51 jordan-TECRA-R840 wpa_supplicant[1271]: nl80211: send_and_recv->nl_recvmsgs failed: -33
Apr 24 07:54:45 jordan-TECRA-R840 wpa_supplicant[1271]: wlan0: CTRL-EVENT-SCAN-STARTED
Apr 24 07:54:50 jordan-TECRA-R840 wpa_supplicant[1271]: nl80211: send_and_recv->nl_recvmsgs failed: -33
Apr 24 07:56:45 jordan-TECRA-R840 wpa_supplicant[1271]: wlan0: CTRL-EVENT-SCAN-STARTED
Apr 24 07:56:50 jordan-TECRA-R840 wpa_supplicant[1271]: nl80211: send_and_recv->nl_recvmsgs failed: -33
Apr 24 07:58:45 jordan-TECRA-R840 wpa_supplicant[1271]: wlan0: CTRL-EVENT-SCAN-STARTED
Apr 24 07:58:50 jordan-TECRA-R840 wpa_supplicant[1271]: nl80211: send_and_recv->nl_recvmsgs failed: -33
Apr 24 08:00:45 jordan-TECRA-R840 wpa_supplicant[1271]: wlan0: CTRL-EVENT-SCAN-STARTED
Apr 24 08:00:50 jordan-TECRA-R840 wpa_supplicant[1271]: nl80211: send_and_recv->nl_recvmsgs failed: -33
Apr 24 08:02:45 jordan-TECRA-R840 wpa_supplicant[1271]: wlan0: CTRL-EVENT-SCAN-STARTED
Apr 24 08:04:45 jordan-TECRA-R840 wpa_supplicant[1271]: wlan0: CTRL-EVENT-SCAN-STARTED
Apr 24 08:04:51 jordan-TECRA-R840 wpa_supplicant[1271]: nl80211: send_and_recv->nl_recvmsgs failed: -33
Apr 24 08:06:45 jordan-TECRA-R840 wpa_supplicant[1271]: wlan0: CTRL-EVENT-SCAN-STARTED
Apr 24 08:06:50 jordan-TECRA-R840 wpa_supplicant[1271]: nl80211: send_and_recv->nl_recvmsgs failed: -33
Apr 24 08:08:45 jordan-TECRA-R840 wpa_supplicant[1271]: wlan0: CTRL-EVENT-SCAN-STARTED
Apr 24 08:08:50 jordan-TECRA-R840 wpa_supplicant[1271]: nl80211: send_and_recv->nl_recvmsgs failed: -33
Apr 24 08:10:45 jordan-TECRA-R840 wpa_supplicant[1271]: wlan0: CTRL-EVENT-SCAN-STARTED
Apr 24 08:10:50 jordan-TECRA-R840 wpa_supplicant[1271]: nl80211: send_and_recv->nl_recvmsgs failed: -33
Apr 24 08:12:45 jordan-TECRA-R840 wpa_supplicant[1271]: wlan0: CTRL-EVENT-SCAN-STARTED
Apr 24 08:12:50 jordan-TECRA-R840 wpa_supplicant[1271]: nl80211: send_and_recv->nl_recvmsgs failed: -33
Apr 24 08:14:45 jordan-TECRA-R840 wpa_supplicant[1271]: wlan0: CTRL-EVENT-SCAN-STARTED
Apr 24 08:14:50 jordan-TECRA-R840 wpa_supplicant[1271]: nl80211: send_and_recv->nl_recvmsgs failed: -33
Apr 24 08:16:45 jordan-TECRA-R840 wpa_supplicant[1271]: wlan0: CTRL-EVENT-SCAN-STARTED
Apr 24 08:16:50 jordan-TECRA-R840 wpa_supplicant[1271]: nl80211: send_and_recv->nl_recvmsgs failed: -33
Apr 24 08:18:45 jordan-TECRA-R840 wpa_supplicant[1271]: wlan0: CTRL-EVENT-SCAN-STARTED
Apr 24 08:18:50 jordan-TECRA-R840 wpa_supplicant[1271]: nl80211: send_and_recv->nl_recvmsgs failed: -33
Apr 24 08:20:45 jordan-TECRA-R840 wpa_supplicant[1271]: wlan0: CTRL-EVENT-SCAN-STARTED
Apr 24 08:20:50 jordan-TECRA-R840 wpa_supplicant[1271]: nl80211: send_and_recv->nl_recvmsgs failed: -33
Ich habe noch nicht zu viel Zeit für die Fehlerbehebung aufgewendet, sondern erst vor einem Tag installiert. Ich habe mich gefragt, ob jemand dieses Problem schon einmal gesehen hat. Ich kann mich nicht erinnern, dies gesehen zu haben, als ich vor 3 Tagen auf Ubuntu 13.10 mit genau der gleichen Hardware war.
Hardware: Tecra R840-S8430 Netzwerk-Controller: Intel Corporation Centrino Advanced-N 6230 (Rainbow Peak) (Version 34) Version: Kubuntu + Ubuntu Release: 14.04 LTS
Update - Weitere Informationen (05.05.05)
Ja, dies scheint meine Verbindung zu beenden. Hier ist ein Syslog von einem typischen Drop, ich muss Wifi deaktivieren / wieder aktivieren, um es wieder herzustellen:
May 5 09:29:57 Oban kernel: [74616.819616] wlan0: deauthenticated from 00:26:62:4f:c3:f6 (Reason: 6)
May 5 09:29:57 Oban wpa_supplicant[1368]: wlan0: CTRL-EVENT-DISCONNECTED bssid=00:26:62:4f:c3:f6 reason=6
May 5 09:29:57 Oban NetworkManager[1151]: <warn> Connection disconnected (reason 6)
May 5 09:29:57 Oban kernel: [74616.851674] cfg80211: Calling CRDA to update world regulatory domain
May 5 09:29:57 Oban wpa_supplicant[1368]: wlan0: SME: Trying to authenticate with 00:26:62:4f:c3:f6 (SSID='Air' freq=2462 MHz)
May 5 09:29:57 Oban NetworkManager[1151]: <info> (wlan0): supplicant interface state: completed -> disconnected
May 5 09:29:57 Oban wpa_supplicant[1368]: wlan0: CTRL-EVENT-SCAN-STARTED
May 5 09:29:57 Oban NetworkManager[1151]: <info> (wlan0): supplicant interface state: disconnected -> authenticating
May 5 09:29:57 Oban kernel: [74616.921570] wlan0: authenticate with 00:26:62:4f:c3:f6
May 5 09:29:57 Oban kernel: [74616.925036] wlan0: send auth to 00:26:62:4f:c3:f6 (try 1/3)
May 5 09:29:57 Oban kernel: [74616.931650] cfg80211: World regulatory domain updated:
May 5 09:29:57 Oban kernel: [74616.931654] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
May 5 09:29:57 Oban kernel: [74616.931656] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
May 5 09:29:57 Oban kernel: [74616.931658] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
May 5 09:29:57 Oban kernel: [74616.931659] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
May 5 09:29:57 Oban kernel: [74616.931661] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
May 5 09:29:57 Oban kernel: [74616.931662] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
May 5 09:29:57 Oban kernel: [74617.031487] wlan0: send auth to 00:26:62:4f:c3:f6 (try 2/3)
May 5 09:29:57 Oban kernel: [74617.035474] wlan0: authenticated
May 5 09:29:57 Oban wpa_supplicant[1368]: wlan0: Trying to associate with 00:26:62:4f:c3:f6 (SSID='Air' freq=2462 MHz)
May 5 09:29:57 Oban NetworkManager[1151]: <info> (wlan0): supplicant interface state: authenticating -> associating
May 5 09:29:57 Oban kernel: [74617.039506] wlan0: associate with 00:26:62:4f:c3:f6 (try 1/3)
May 5 09:29:57 Oban kernel: [74617.043029] wlan0: RX AssocResp from 00:26:62:4f:c3:f6 (capab=0x431 status=0 aid=4)
May 5 09:29:57 Oban wpa_supplicant[1368]: wlan0: Associated with 00:26:62:4f:c3:f6
May 5 09:29:57 Oban kernel: [74617.050233] wlan0: associated
May 5 09:29:57 Oban kernel: [74617.050393] cfg80211: Calling CRDA for country: US
May 5 09:29:57 Oban NetworkManager[1151]: <info> (wlan0): supplicant interface state: associating -> associated
May 5 09:29:57 Oban kernel: [74617.056664] cfg80211: Regulatory domain changed to country: US
May 5 09:29:57 Oban kernel: [74617.056673] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
May 5 09:29:57 Oban kernel: [74617.056679] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2700 mBm)
May 5 09:29:57 Oban kernel: [74617.056685] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 1700 mBm)
May 5 09:29:57 Oban kernel: [74617.056690] cfg80211: (5250000 KHz - 5330000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
May 5 09:29:57 Oban kernel: [74617.056695] cfg80211: (5490000 KHz - 5600000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
May 5 09:29:57 Oban kernel: [74617.056700] cfg80211: (5650000 KHz - 5710000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
May 5 09:29:57 Oban kernel: [74617.056705] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 3000 mBm)
May 5 09:29:57 Oban kernel: [74617.056711] cfg80211: (57240000 KHz - 63720000 KHz @ 2160000 KHz), (N/A, 4000 mBm)
May 5 09:29:57 Oban NetworkManager[1151]: <info> (wlan0): supplicant interface state: associated -> 4-way handshake
May 5 09:29:57 Oban wpa_supplicant[1368]: wlan0: WPA: Key negotiation completed with 00:26:62:4f:c3:f6 [PTK=CCMP GTK=CCMP]
May 5 09:29:57 Oban wpa_supplicant[1368]: wlan0: CTRL-EVENT-CONNECTED - Connection to 00:26:62:4f:c3:f6 completed [id=0 id_str=]
May 5 09:29:57 Oban NetworkManager[1151]: <info> (wlan0): supplicant interface state: 4-way handshake -> completed
May 5 09:31:34 Oban kernel: [74713.775114] wlan0: deauthenticated from 00:26:62:4f:c3:f6 (Reason: 6)
May 5 09:31:34 Oban wpa_supplicant[1368]: wlan0: CTRL-EVENT-DISCONNECTED bssid=00:26:62:4f:c3:f6 reason=6
May 5 09:31:34 Oban NetworkManager[1151]: <warn> Connection disconnected (reason 6)
May 5 09:31:34 Oban kernel: [74713.812782] cfg80211: Calling CRDA to update world regulatory domain
May 5 09:31:34 Oban NetworkManager[1151]: <info> (wlan0): supplicant interface state: completed -> disconnected
May 5 09:31:34 Oban kernel: [74713.816717] cfg80211: World regulatory domain updated:
May 5 09:31:34 Oban kernel: [74713.816724] cfg80211: (start_freq - end_freq @ bandwidth), (max_antenna_gain, max_eirp)
May 5 09:31:34 Oban kernel: [74713.816729] cfg80211: (2402000 KHz - 2472000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
May 5 09:31:34 Oban kernel: [74713.816732] cfg80211: (2457000 KHz - 2482000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
May 5 09:31:34 Oban kernel: [74713.816735] cfg80211: (2474000 KHz - 2494000 KHz @ 20000 KHz), (300 mBi, 2000 mBm)
May 5 09:31:34 Oban kernel: [74713.816738] cfg80211: (5170000 KHz - 5250000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
May 5 09:31:34 Oban kernel: [74713.816741] cfg80211: (5735000 KHz - 5835000 KHz @ 40000 KHz), (300 mBi, 2000 mBm)
May 5 09:31:34 Oban NetworkManager[1151]: <info> (wlan0): supplicant interface state: disconnected -> scanning
May 5 09:31:49 Oban NetworkManager[1151]: <warn> (wlan0): link timed out.
May 5 09:31:49 Oban NetworkManager[1151]: <info> (wlan0): device state change: activated -> failed (reason 'SSID not found') [100 120 53]
May 5 09:31:49 Oban NetworkManager[1151]: <info> NetworkManager state is now DISCONNECTED
May 5 09:31:49 Oban NetworkManager[1151]: <warn> Activation (wlan0) failed for connection 'Air'
May 5 09:31:49 Oban dbus[943]: [system] Activating service name='org.freedesktop.nm_dispatcher' (using servicehelper)
May 5 09:31:49 Oban NetworkManager[1151]: <info> (wlan0): device state change: failed -> disconnected (reason 'none') [120 30 0]
May 5 09:31:49 Oban NetworkManager[1151]: <info> (wlan0): deactivating device (reason 'none') [0]
May 5 09:11:56 Oban whoopsie[1374]: online
May 5 09:31:49 Oban whoopsie[1374]: offline
May 5 09:31:49 Oban kernel: [74729.721867] IPv6: ADDRCONF(NETDEV_UP): wlan0: link is not ready
May 5 09:31:49 Oban NetworkManager[1151]: <info> (wlan0): canceled DHCP transaction, DHCP client pid 11587
May 5 09:31:49 Oban avahi-daemon[1099]: Withdrawing address record for fe80::8a53:2eff:fe07:49c8 on wlan0.
May 5 09:31:49 Oban avahi-daemon[1099]: Leaving mDNS multicast group on interface wlan0.IPv6 with address fe80::8a53:2eff:fe07:49c8.
May 5 09:31:49 Oban avahi-daemon[1099]: Interface wlan0.IPv6 no longer relevant for mDNS.
May 5 09:31:49 Oban NetworkManager[1151]: <warn> DNS: plugin dnsmasq update failed
May 5 09:31:49 Oban NetworkManager[1151]: <info> Removing DNS information from /sbin/resolvconf
May 5 09:31:49 Oban avahi-daemon[1099]: Withdrawing address record for 192.168.1.5 on wlan0.
May 5 09:31:49 Oban avahi-daemon[1099]: Leaving mDNS multicast group on interface wlan0.IPv4 with address 192.168.1.5.
May 5 09:31:49 Oban avahi-daemon[1099]: Interface wlan0.IPv4 no longer relevant for mDNS.
May 5 09:31:49 Oban dnsmasq[1888]: setting upstream servers from DBus
May 5 09:31:50 Oban NetworkManager[1151]: <warn> Couldn't disconnect supplicant interface: This interface is not connected.
May 5 09:31:50 Oban dbus[943]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
Das ist so frustrierend. Ich kann nicht immer auf cat5 sein. Wie ich schon sagte, geschah dies nie am 13.10. Ich möchte wirklich nicht downgraden. Kann ich die WLAN-Treiber ab 13.10 verwenden?
Außerdem habe ich meine WLAN-Sicherheit von WPA2 auf 128 WEP geändert und die Verbindung bisher nur einmal in wenigen Stunden getrennt. In WPA2 waren es durchschnittlich alle 10.