@alberto: just tried what you suggested. Returns that dnsmasq is not installed in the first place.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1594715 Title: wifi does not work roughly half of the times Status in network-manager package in Ubuntu: Confirmed Bug description: After booting, roughly half of the times, wifi doesn't work: The nm- applet menu looks as if no wifi would exist. Instead, it lists the a non-existing cable network device called "Marvell 88W8897 [AVASTAR] 802.11ac Wireless". (The network manager seems to be trying to connect to that device, but fails.) After doing /etc/init.d/network-manager restart the wifi device is always recognized properly, so I guess it's something happening in the wrong order during booting. (Alternatively, unloading and reloading the kernel module mwifiex_pcie also always helps.) The problem did not exist in ubuntu 15.10. Some more information: $ lsb_release -rd Description: Ubuntu 16.04 LTS Release: 16.04 When the bug is there: $ nmcli d show wlp1s0 GENERAL.DEVICE: wlp1s0 GENERAL.TYPE: ethernet GENERAL.HWADDR: 50:1A:C5:E8:2F:09 GENERAL.MTU: 1500 GENERAL.STATE: 70 (connecting (getting IP configuration)) GENERAL.CONNECTION: Kabelnetzwerkverbindung 2 GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/7 WIRED-PROPERTIES.CARRIER: on $ ifconfig -a lo Link encap:Local Loopback inet addr:127.0.0.1 Mask:255.0.0.0 inet6 addr: ::1/128 Scope:Host UP LOOPBACK RUNNING MTU:65536 Metric:1 RX packets:3380 errors:0 dropped:0 overruns:0 frame:0 TX packets:3380 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1 RX bytes:251184 (251.1 KB) TX bytes:251184 (251.1 KB) wlp1s0 Link encap:Ethernet HWaddr 50:1a:c5:e8:2f:09 UP BROADCAST MULTICAST MTU:1500 Metric:1 RX packets:0 errors:0 dropped:0 overruns:0 frame:0 TX packets:0 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:0 (0.0 B) TX bytes:0 (0.0 B) After restarting the network manager: immi@flunder:~$ nmcli d show wlp1s0 GENERAL.DEVICE: wlp1s0 GENERAL.TYPE: wifi GENERAL.HWADDR: 50:1A:C5:E8:2F:09 GENERAL.MTU: 0 GENERAL.STATE: 100 (connected) GENERAL.CONNECTION: virginmedia4709476 GENERAL.CON-PATH: /org/freedesktop/NetworkManager/ActiveConnection/8 IP4.ADDRESS[1]: 192.168.0.3/24 IP4.GATEWAY: 192.168.0.1 IP4.ROUTE[1]: dst = 169.254.0.0/16, nh = 0.0.0.0, mt = 1000 IP4.DNS[1]: 194.168.4.100 IP4.DNS[2]: 194.168.8.100 IP6.ADDRESS[1]: fe80::521a:c5ff:fee8:2f09/64 IP6.GATEWAY: (...) wlp1s0 Link encap:Ethernet HWaddr 50:1a:c5:e8:2f:09 inet6 addr: fe80::521a:c5ff:fee8:2f09/64 Scope:Link UP BROADCAST RUNNING MULTICAST MTU:1500 Metric:1 RX packets:2 errors:0 dropped:0 overruns:0 frame:0 TX packets:4 errors:0 dropped:0 overruns:0 carrier:0 collisions:0 txqueuelen:1000 RX bytes:304 (304.0 B) TX bytes:680 (680.0 B) $ dmesg (...) [ 7.850180] IPv6: ADDRCONF(NETDEV_UP): wlp1s0: link is not ready [ 7.850263] IPv6: ADDRCONF(NETDEV_UP): wlp1s0: link is not ready [ 7.859773] IPv6: ADDRCONF(NETDEV_UP): wlp1s0: link is not ready [ 7.869408] IPv6: ADDRCONF(NETDEV_UP): wlp1s0: link is not ready (...) I'm happy to try to fix the bug myself, but I could need some help: I don't know how to change booting order or something like that. I could also temporarily insert some commands into /etc/init.d /network-manager printing some status information about the wifi, but I don't know how to get such status information. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: network-manager 1.1.93-0ubuntu4 ProcVersionSignature: Ubuntu 4.4.0-24.43-generic 4.4.10 Uname: Linux 4.4.0-24-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.1 Architecture: amd64 CurrentDesktop: Unity Date: Tue Jun 21 09:35:14 2016 IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2014-11-19 (579 days ago) InstallationMedia: Ubuntu 14.10 "Utopic Unicorn" - Release amd64 (20141022.1) IpRoute: default via 192.168.1.1 dev eth0 proto static metric 100 169.254.0.0/16 dev eth0 scope link metric 1000 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.50 metric 100 NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=false WWANEnabled=true WimaxEnabled=true SourcePackage: network-manager UpgradeStatus: Upgraded to xenial on 2016-04-30 (51 days ago) modified.conffile..etc.NetworkManager.NetworkManager.conf: [modified] mtime.conffile..etc.NetworkManager.NetworkManager.conf: 2014-12-13T12:54:55.927900 nmcli-dev: DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH eth0 ethernet connected /org/freedesktop/NetworkManager/Devices/0 Kabelnetzwerkverbindung 1 d3ba9191-d126-453b-99a5-1bd12ed71d33 /org/freedesktop/NetworkManager/ActiveConnection/1 wlp1s0 wifi unavailable /org/freedesktop/NetworkManager/Devices/2 -- -- -- lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/1 -- -- -- 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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