It's happening very frequently now. I tried to get some state this morning. The network would intermittently work when it was in the bad state, and only started working when I disconnected wlan0 *and* reconnected eth0.
-- bad state -- laney@iota> netstat -rn Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 wlan0 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 wlan0 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 laney@iota> ping orangesquash.org.uk PING orangesquash.org.uk (85.119.82.37) 56(84) bytes of data. ^C --- orangesquash.org.uk ping statistics --- 3 packets transmitted, 0 received, 100% packet loss, time 2016ms laney@iota> ip route show default via 192.168.1.1 dev eth0 proto static metric 1024 169.254.0.0/16 dev wlan0 scope link metric 1000 192.168.1.0/24 dev wlan0 proto kernel scope link src 192.168.1.134 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.106 -- good state -- laney@iota> ip ro show default via 192.168.1.1 dev eth0 proto static metric 1024 169.254.0.0/16 dev eth0 scope link metric 1000 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.106 laney@iota> netstat -rn Kernel IP routing table Destination Gateway Genmask Flags MSS Window irtt Iface 0.0.0.0 192.168.1.1 0.0.0.0 UG 0 0 0 eth0 169.254.0.0 0.0.0.0 255.255.0.0 U 0 0 0 eth0 192.168.1.0 0.0.0.0 255.255.255.0 U 0 0 0 eth0 Can someone please tell me what other debugging information will be useful? Attaching another syslog. ** Attachment added: "syslog" https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1422096/+attachment/4342455/+files/syslog -- 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/1422096 Title: Occasionally no network on resume Status in network-manager package in Ubuntu: New Bug description: Sometimes I resume and n-m thinks that lxcbr0 is a connected wired network, so doesn't connect to the wireless network that I actually want to use until I restart it. laney@iota> nmcli d DEVICE TYPE STATE CONNECTION lxcbr0 bridge connected lxcbr0 virbr0 bridge connected virbr0 50:46:5D:18:E7:06 bt disconnected -- wlan0 wifi disconnected -- eth0 ethernet unavailable -- lo loopback unmanaged -- virbr0-nic tap unmanaged -- laney@iota> nmcli d w l ifname wlan0 * SSID MODE CHAN RATE SIGNAL BARS SECURITY laney@iota> cat /etc/network/interfaces auto lo iface lo inet loopback ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: network-manager 0.9.10.0-4ubuntu6 ProcVersionSignature: Ubuntu 3.18.0-13.14-generic 3.18.5 Uname: Linux 3.18.0-13-generic x86_64 NonfreeKernelModules: nvidia wl ApportVersion: 2.16.1-0ubuntu2 Architecture: amd64 CurrentDesktop: GNOME Date: Sun Feb 15 10:37:28 2015 IfupdownConfig: auto lo iface lo inet loopback InstallationDate: Installed on 2012-10-18 (850 days ago) InstallationMedia: Ubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120823.1) IpRoute: default via 192.168.1.1 dev wlan0 proto static metric 1024 169.254.0.0/16 dev wlan0 scope link metric 1000 192.168.1.0/24 dev wlan0 proto kernel scope link src 192.168.1.134 SourcePackage: network-manager UpgradeStatus: Upgraded to vivid on 2014-07-30 (200 days ago) nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2: Error: Object 'nm' is unknown, try 'nmcli help'. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1422096/+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