I have the exact same issue, no network connectivity after sleeping. the adapter is there, eth0, but it does not get a new ip address from DHCP.
dhclient process is running. -- 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/1269849 Title: no network after resuming from sleep Status in “network-manager” package in Ubuntu: Confirmed Bug description: When I resume PC from sleep, there is no network and even after clicking "Enable Networking" it doesn't appear. Only reboot helps. It seems repeatable, but I don't know how to troubleshoot it further. Any advices? ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: network-manager 0.9.8.0-0ubuntu22 ProcVersionSignature: Ubuntu 3.11.0-15.23-generic 3.11.10 Uname: Linux 3.11.0-15-generic i686 NonfreeKernelModules: nvidia ApportVersion: 2.12.5-0ubuntu2.2 Architecture: i386 Date: Thu Jan 16 18:27:32 2014 IfupdownConfig: auto lo iface lo inet loopback InstallationDate: Installed on 2012-03-12 (675 days ago) InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta i386 (20120301) IpRoute: default via 192.168.1.1 dev eth0 proto static 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.34 metric 1 IwConfig: lo no wireless extensions. eth0 no wireless extensions. MarkForUpload: True NetworkManager.state: [main] NetworkingEnabled=true WirelessEnabled=true WWANEnabled=true WimaxEnabled=true RfKill: SourcePackage: network-manager UpgradeStatus: Upgraded to saucy on 2013-10-21 (87 days ago) nmcli-con: NAME UUID TYPE TIMESTAMP TIMESTAMP-REAL AUTOCONNECT READONLY DBUS-PATH Wired connection 1 e258497b-cc83-418b-9614-50a5ffda840c 802-3-ethernet 1389886078 Thu 16 Jan 2014 06:27:58 PM FET yes no /org/freedesktop/NetworkManager/Settings/0 nmcli-dev: DEVICE TYPE STATE DBUS-PATH eth0 802-3-ethernet connected /org/freedesktop/NetworkManager/Devices/0 nmcli-nm: RUNNING VERSION STATE NET-ENABLED WIFI-HARDWARE WIFI WWAN-HARDWARE WWAN running 0.9.8.0 connected enabled enabled enabled enabled disabled To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1269849/+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