Also, I guess this bug may be somehow related to https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1578533, which also reproduces for me on the same laptop.
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1580256 Title: Wifi connections not available after system startup Status in network-manager package in Ubuntu: New Bug description: After system startup, in some cases (it seems randomly), network-manager does not show any connections available (empty list of networks in systray icon menu). If i press "configure connections" button, connections editor shows two connections, but it is not possible to activate any of them. Connections are called as "wired connection 1" and "Wired connection 2". If i go to connection settings, i can see that one of them is configured to use my ethernet cable interface enp0s25 (i usually have no ethernet cable attached), and another is configured to use my wifi interface wlp4s0. So it seems that problem is that for some reason network-manager "thinks" that my wireless interface is wired, and so does not even try to connect to any wifi network. If I do sudo service network-manager restart, all becomes ok, network-manager immediately sees my wifi network and connects to it. But having to manual restart of service right after system startup indicates that something is very wrong. This is newly installed Kubuntu 16.04 with latest updates. What I tried to do: * edit NetworkManager.conf to set [ifupdown] managed = true. No changes in behaivour at all. * remove and install again network-manager package. For some time I thought that resolved the problem, but after few days it reproduced again. * plug ethernet cable, connect to wired network, unplug cable. No results. dmesg | grep wifi output: [ 3.693651] iwlwifi 0000:04:00.0: Direct firmware load for iwlwifi-7260-17.ucode failed with error -2 [ 3.706221] iwlwifi 0000:04:00.0: loaded firmware version 16.242414.0 op_mode iwlmvm [ 3.749453] iwlwifi 0000:04:00.0: Detected Intel(R) Wireless N 7260, REV=0x144 [ 3.749526] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled [ 3.749782] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled [ 3.965973] iwlwifi 0000:04:00.0 wlp4s0: renamed from wlan0 [ 4.329538] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled [ 4.330033] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled [ 4.535001] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled [ 4.535266] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled [ 122.272761] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled [ 122.273048] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled [ 122.470381] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled [ 122.470640] iwlwifi 0000:04:00.0: L1 Enabled - LTR Enabled Please ask if you need me to attach any other logs. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: network-manager 1.1.93-0ubuntu4 ProcVersionSignature: Ubuntu 4.4.0-22.39-generic 4.4.8 Uname: Linux 4.4.0-22-generic x86_64 NonfreeKernelModules: nvidia_uvm nvidia_modeset nvidia ApportVersion: 2.20.1-0ubuntu2 Architecture: amd64 Date: Tue May 10 21:23:27 2016 IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2016-04-30 (9 days ago) InstallationMedia: Kubuntu 16.04 LTS "Xenial Xerus" - Release amd64 (20160420.1) IpRoute: default via 192.168.1.1 dev wlp4s0 proto static metric 600 169.254.0.0/16 dev wlp4s0 scope link metric 1000 192.168.1.0/24 dev wlp4s0 proto kernel scope link src 192.168.1.107 metric 600 NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true ProcEnviron: TERM=xterm PATH=(custom, no user) XDG_RUNTIME_DIR=<set> LANG=ru_RU.UTF-8 SHELL=/bin/bash SourcePackage: network-manager UpgradeStatus: No upgrade log present (probably fresh install) mtime.conffile..etc.NetworkManager.NetworkManager.conf: 2016-05-08T12:50:46.588618 nmcli-con: NAME UUID TYPE TIMESTAMP TIMESTAMP-REAL AUTOCONNECT AUTOCONNECT-PRIORITY READONLY DBUS-PATH ACTIVE DEVICE STATE ACTIVE-PATH tplink-portnov 1 fdff901c-5deb-4104-ba4d-c555e4b81d7c 802-11-wireless 1462897338 Вт 10 май 2016 21:22:18 yes 0 no /org/freedesktop/NetworkManager/Settings/0 yes wlp4s0 activated /org/freedesktop/NetworkManager/ActiveConnection/0 Проводное соединение 1 08666419-d8c4-4c5f-911a-de123d44ec3a 802-3-ethernet 0 never yes 0 no /org/freedesktop/NetworkManager/Settings/1 no -- -- -- nmcli-dev: DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH wlp4s0 wifi connected /org/freedesktop/NetworkManager/Devices/1 tplink-portnov 1 fdff901c-5deb-4104-ba4d-c555e4b81d7c /org/freedesktop/NetworkManager/ActiveConnection/0 enp0s25 ethernet unavailable /org/freedesktop/NetworkManager/Devices/2 -- -- -- lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/0 -- -- -- nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2: Error: Object 'nm' is unknown, try 'nmcli help'. 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