Public bug reported: Hi there !
Since I upgraded from Ubuntu 14.10 to 15.04, I have some WIFI disconnections. Seems to appears for no reasons... maybe after a period of non utilization but i'm not sure. Here some informations : Package : network-manager-gnome 0.9.10.1-0ubuntu4 root@steven-desktop:/home/steven# /etc/init.d/network-manager status ● NetworkManager.service - Network Manager Loaded: loaded (/lib/systemd/system/NetworkManager.service; enabled; vendor preset: enabled) Active: active (running) since sam. 2015-06-20 11:15:43 CEST; 16min ago Main PID: 8594 (NetworkManager) CGroup: /system.slice/NetworkManager.service ├─ 812 /usr/sbin/dnsmasq --no-resolv --keep-in-foreground --no-hosts --bind-interfaces --pid-file=/run/sendsigs.omit.d/network-mana... ├─8594 /usr/sbin/NetworkManager --no-daemon └─8604 /sbin/dhclient -d -q -sf /usr/lib/NetworkManager/nm-dhcp-helper -pf /run/sendsigs.omit.d/network-manager.dhclient-wlan0.pid ... juin 20 11:15:44 steven-desktop dhclient[8604]: bound to 192.168.1.35 -- renewal in 37987 seconds. juin 20 11:15:44 steven-desktop NetworkManager[8594]: <info> NetworkManager state is now CONNECTED_GLOBAL juin 20 11:15:44 steven-desktop NetworkManager[8594]: <info> Policy set '**************' (wlan0) as default for IPv4 routing and DNS. juin 20 11:15:44 steven-desktop NetworkManager[8594]: <info> Writing DNS information to /sbin/resolvconf juin 20 11:15:44 steven-desktop dnsmasq[812]: configuration des serveurs amonts à partir de DBus juin 20 11:15:44 steven-desktop dnsmasq[812]: utilise le serveur de nom 192.168.1.1#53 juin 20 11:15:44 steven-desktop NetworkManager[8594]: <info> Activation (wlan0) successful, device activated. juin 20 11:15:49 steven-desktop NetworkManager[8594]: <info> startup complete juin 20 11:15:54 steven-desktop NetworkManager[8594]: <info> WiFi hardware radio set enabled juin 20 11:15:54 steven-desktop NetworkManager[8594]: <info> WWAN hardware radio set enabled Here logs when I have this problem, reported error is first with reason : NM_DEVICE_STATE_REASON_CONFIG_FAILED root@steven-desktop:/home/steven# cat /var/log/syslog | grep wpa_supplicant Jun 20 10:49:04 steven-desktop wpa_supplicant[777]: wlan0: WPA: Group rekeying completed with 18:62:2c:93:fa:72 [GTK=TKIP] Jun 20 11:00:55 steven-desktop wpa_supplicant[777]: wlan0: CTRL-EVENT-DISCONNECTED bssid=18:62:2c:93:fa:72 reason=4 locally_generated=1 Jun 20 11:00:56 steven-desktop wpa_supplicant[777]: wlan0: CTRL-EVENT-SCAN-STARTED Jun 20 11:00:57 steven-desktop wpa_supplicant[777]: wlan0: SME: Trying to authenticate with 18:62:2c:93:fa:72 (SSID='******************' freq=2437 MHz) Jun 20 11:01:00 steven-desktop wpa_supplicant[777]: wlan0: CTRL-EVENT-SCAN-STARTED Jun 20 11:01:01 steven-desktop wpa_supplicant[777]: wlan0: SME: Trying to authenticate with 18:62:2c:93:fa:72 (SSID='******************' freq=2437 MHz) Jun 20 11:01:03 steven-desktop wpa_supplicant[777]: wlan0: CTRL-EVENT-SCAN-STARTED Jun 20 11:01:04 steven-desktop wpa_supplicant[777]: wlan0: SME: Trying to authenticate with 18:62:2c:93:fa:72 (SSID='******************' freq=2437 MHz) Jun 20 11:01:04 steven-desktop wpa_supplicant[777]: wlan0: Trying to associate with 18:62:2c:93:fa:72 (SSID='******************' freq=2437 MHz) Jun 20 11:01:05 steven-desktop wpa_supplicant[777]: wlan0: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="******************" auth_failures=1 duration=10 Jun 20 11:01:10 steven-desktop wpa_supplicant[777]: wlan0: CTRL-EVENT-SCAN-STARTED Jun 20 11:01:11 steven-desktop wpa_supplicant[777]: wlan0: Reject scan trigger since one is already pending Jun 20 11:01:11 steven-desktop wpa_supplicant[777]: wlan0: SME: Trying to authenticate with 18:62:2c:93:fa:72 (SSID='******************' freq=2437 MHz) Jun 20 11:01:12 steven-desktop wpa_supplicant[777]: wlan0: CTRL-EVENT-SSID-TEMP-DISABLED id=0 ssid="******************" auth_failures=1 duration=10 [...] root@steven-desktop:/home/steven# cat /var/log/syslog | grep NetworkManager Jun 20 11:00:55 steven-desktop NetworkManager[645]: <warn> Connection disconnected (reason -4) Jun 20 11:00:55 steven-desktop NetworkManager[645]: <info> (wlan0): supplicant interface state: completed -> disconnected Jun 20 11:00:56 steven-desktop NetworkManager[645]: <info> (wlan0): supplicant interface state: disconnected -> scanning Jun 20 11:00:57 steven-desktop NetworkManager[645]: <info> (wlan0): supplicant interface state: scanning -> authenticating Jun 20 11:00:58 steven-desktop NetworkManager[645]: <info> (wlan0): supplicant interface state: authenticating -> disconnected Jun 20 11:01:00 steven-desktop NetworkManager[645]: <info> (wlan0): supplicant interface state: disconnected -> scanning Jun 20 11:01:01 steven-desktop NetworkManager[645]: <info> (wlan0): supplicant interface state: scanning -> authenticating Jun 20 11:01:02 steven-desktop NetworkManager[645]: <info> (wlan0): supplicant interface state: authenticating -> disconnected Jun 20 11:01:03 steven-desktop NetworkManager[645]: <info> (wlan0): supplicant interface state: disconnected -> scanning Jun 20 11:01:04 steven-desktop NetworkManager[645]: <info> (wlan0): supplicant interface state: scanning -> authenticating Jun 20 11:01:04 steven-desktop NetworkManager[645]: <info> (wlan0): supplicant interface state: authenticating -> associating Jun 20 11:01:05 steven-desktop NetworkManager[645]: <info> (wlan0): supplicant interface state: associating -> disconnected Jun 20 11:01:10 steven-desktop NetworkManager[645]: <info> (wlan0): supplicant interface state: disconnected -> scanning Jun 20 11:01:11 steven-desktop NetworkManager[645]: <warn> (wlan0): link timed out. Jun 20 11:01:11 steven-desktop NetworkManager[645]: <info> (wlan0): device state change: activated -> failed (reason 'supplicant-timeout') [100 120 11] Jun 20 11:01:11 steven-desktop NetworkManager[645]: <info> NetworkManager state is now CONNECTED_LOCAL Jun 20 11:01:11 steven-desktop NetworkManager[645]: <info> NetworkManager state is now DISCONNECTED Jun 20 11:01:11 steven-desktop NetworkManager[645]: <warn> Activation (wlan0) failed for connection '******************' Jun 20 11:01:11 steven-desktop NetworkManager[645]: <info> (wlan0): device state change: failed -> disconnected (reason 'none') [120 30 0] Jun 20 11:01:11 steven-desktop NetworkManager[645]: <info> (wlan0): deactivating device (reason 'none') [0] Jun 20 11:01:11 steven-desktop NetworkManager[645]: <info> (wlan0): canceled DHCP transaction, DHCP client pid 809 Jun 20 11:01:11 steven-desktop NetworkManager[645]: _nl_get_vtable: assertion 'vtable.handle' failed Jun 20 11:01:11 steven-desktop NetworkManager[645]: <info> Writing DNS information to /sbin/resolvconf Jun 20 11:01:11 steven-desktop NetworkManager[645]: <warn> Couldn't disconnect supplicant interface: This interface is not connected. Jun 20 11:01:11 steven-desktop NetworkManager[645]: <info> Auto-activating connection '******************'. Jun 20 11:01:11 steven-desktop NetworkManager[645]: <info> Activation (wlan0) starting connection '******************' Jun 20 11:01:11 steven-desktop NetworkManager[645]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) scheduled... Jun 20 11:01:11 steven-desktop NetworkManager[645]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) started... Jun 20 11:01:11 steven-desktop NetworkManager[645]: <info> (wlan0): device state change: disconnected -> prepare (reason 'none') [30 40 0] Jun 20 11:01:11 steven-desktop NetworkManager[645]: <info> NetworkManager state is now CONNECTING Jun 20 11:01:11 steven-desktop NetworkManager[645]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) scheduled... Jun 20 11:01:11 steven-desktop NetworkManager[645]: <info> Activation (wlan0) Stage 1 of 5 (Device Prepare) complete. Jun 20 11:01:11 steven-desktop NetworkManager[645]: <info> Activation (wlan0) Stage 2 of 5 (Device Configure) starting... Jun 20 11:01:11 steven-desktop NetworkManager[645]: <info> (wlan0): device state change: prepare -> config (reason 'none') [40 50 0] Jun 20 11:01:11 steven-desktop NetworkManager[645]: <info> Activation (wlan0/wireless): access point '******************' has security, but secrets are required. [...] My solution is to restart network-manager like this "service network-manager restart", but maybe network-manager is not the faulty package. Thanks for your help ! ** Affects: network-manager-applet (Ubuntu) Importance: Undecided Status: New ** Tags: network-manage wifi -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1467069 Title: NM loose WIFI connection - device cannot be readied for configuration To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager-applet/+bug/1467069/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs