Please note that bug 1666318 has relevant information. It appears that editing
/etc/NetworkManager/NetworkManager.conf and removing "dns=dnsmasq" makes the problem go away. So, this could be a bug in either network manager or in dnsmasq -- 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/1676810 Title: Network Manager needs restarting from sleep Status in network-manager package in Ubuntu: Confirmed Bug description: Each time my laptop is suspended and resumed, Network Manager seems unable to bring up Wifi. Calling... sudo service network-manager restart ...resolves the problem. I therefore placed the attached file at... /lib/systemd/system-sleep/network-manager ...which provides a workaround for the problem. However, there must be some kind of underlying bug in network-manager which requires it to be restarted after every suspend/resume cycle. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: network-manager 1.2.6-0ubuntu0.16.04.1 ProcVersionSignature: Ubuntu 4.4.0-66.87-generic 4.4.44 Uname: Linux 4.4.0-66-generic x86_64 ApportVersion: 2.20.1-0ubuntu2.5 Architecture: amd64 CurrentDesktop: LXDE Date: Tue Mar 28 10:21:35 2017 EcryptfsInUse: Yes IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback IpRoute: default via 192.168.1.1 dev wlp1s0 proto static metric 600 172.17.0.0/16 dev docker0 proto kernel scope link src 172.17.0.1 linkdown 192.168.1.0/24 dev wlp1s0 proto kernel scope link src 192.168.1.203 metric 600 JournalErrors: Error: command ['journalctl', '-b', '--priority=warning', '--lines=1000'] failed with exit code 1: Hint: You are currently not seeing messages from other users and the system. Users in the 'systemd-journal' group can see all messages. Pass -q to turn off this notice. No journal files were opened due to insufficient permissions. NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true SourcePackage: network-manager UpgradeStatus: No upgrade log present (probably fresh install) WifiSyslog: nmcli-dev: DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH docker0 bridge connected /org/freedesktop/NetworkManager/Devices/1 docker0 ac7e4d66-b979-41de-b4b2-6f7c5dffc232 /org/freedesktop/NetworkManager/ActiveConnection/0 wlp1s0 wifi connected /org/freedesktop/NetworkManager/Devices/0 Kitchen 2 937ae07a-fb47-46ac-91a4-0fe200203a95 /org/freedesktop/NetworkManager/ActiveConnection/1 lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/2 -- -- -- nmcli-nm: RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN running 1.2.6 connected started full enabled enabled enabled enabled enabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1676810/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
