I have the same issue when e.g.: - switching from Ethernet (via a USB-to-Ethernet adapter) and WiFi - turning on or off a VPN managed by NetworkManager (openvpn configured manually does not have the issue)
My current workaround is to killall dnsmasq as root. It will re-start automatically with the updated settings. -- 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/1639568 Title: dnsmasq not updated by NetworkManager on system resume Status in network-manager package in Ubuntu: Confirmed Bug description: When the system resumes after sleep dnsmasq is either not updated with new dns information of never resumes operation. Restarting the network-manager service will manually resolve the problem. Everything else seems correct, the DHCP information is correct and shows the correct nameservers, resolv.conf is updated correctly. I am unable to determine if the issue is with dnsmasq not resuming or if the dbus message with the name servers is getting lost. ProblemType: Bug DistroRelease: Ubuntu 16.10 Package: network-manager 1.2.4-0ubuntu1 ProcVersionSignature: Ubuntu 4.8.0-26.28-generic 4.8.0 Uname: Linux 4.8.0-26-generic x86_64 ApportVersion: 2.20.3-0ubuntu8 Architecture: amd64 CurrentDesktop: Unity Date: Sun Nov 6 07:24:44 2016 IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2016-11-03 (2 days ago) InstallationMedia: Ubuntu 16.10 "Yakkety Yak" - Release amd64 (20161012.2) IpRoute: default via 192.168.1.1 dev wlp58s0 proto static metric 600 169.254.0.0/16 dev wlp58s0 scope link metric 1000 192.168.1.0/24 dev wlp58s0 proto kernel scope link src 192.168.1.218 metric 600 NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true SourcePackage: network-manager UpgradeStatus: No upgrade log present (probably fresh install) nmcli-dev: DEVICE TYPE STATE DBUS-PATH CONNECTION CON-UUID CON-PATH wlp58s0 wifi connected /org/freedesktop/NetworkManager/Devices/0 The_Magical_Mystery_Tour 4e4fe235-20a0-414a-8ec3-97f65060250e /org/freedesktop/NetworkManager/ActiveConnection/1 lo loopback unmanaged /org/freedesktop/NetworkManager/Devices/1 -- -- -- nmcli-nm: RUNNING VERSION STATE STARTUP CONNECTIVITY NETWORKING WIFI-HW WIFI WWAN-HW WWAN running 1.2.4 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/1639568/+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
