Public bug reported: Thinkpad X220 in a docking station. Wired ethernet connection on docking station enabled and connected & working. Wifi adapter in laptop is enabled and connected to same network.
In 14.10 I could have both enabled, and plug/unplug laptop to docking station and everything "Just Works" Since 15.04 I can't have both network devices enabled because the network is unusable until I disable one of the devices. Steps to reproduce:- Connect laptop to wired and wifi Reboot. Login to desktop Start pinging a remote host, e.g. 8.8.8.8. Observe long (30s) drop-outs, then around 7-10 seconds of functional internet connection, then 30 seconds off again. http://paste.ubuntu.com/10759863/ Note: no response between lines 2 and 3, 10 and 11, 18 and 19, 26 and 27 etc. Just before line 43 I disconnected from the wifi using the network manager applet -> Disconnect menu item. The system functions perfectly normally once wifi is disconnected. Similarly I can disable wired connection and the system works fine. ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: network-manager 0.9.10.0-4ubuntu13 ProcVersionSignature: Ubuntu 3.19.0-12.12-generic 3.19.3 Uname: Linux 3.19.0-12-generic x86_64 ApportVersion: 2.17-0ubuntu1 Architecture: amd64 CurrentDesktop: Unity Date: Tue Apr 7 10:10:42 2015 IfupdownConfig: # interfaces(5) file used by ifup(8) and ifdown(8) auto lo iface lo inet loopback InstallationDate: Installed on 2014-06-16 (294 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) IpRoute: default via 192.168.1.1 dev eth0 proto static metric 1024 192.168.1.0/24 dev eth0 proto kernel scope link src 192.168.1.90 192.168.122.0/24 dev virbr0 proto kernel scope link src 192.168.122.1 SourcePackage: network-manager UpgradeStatus: Upgraded to vivid on 2015-02-05 (60 days ago) mtime.conffile..etc.NetworkManager.NetworkManager.conf: 2014-09-25T11:02:51.660372 nmcli-nm: Error: command ['nmcli', '-f', 'all', 'nm'] failed with exit code 2: Error: Object 'nm' is unknown, try 'nmcli help'. ** Affects: network-manager (Ubuntu) Importance: Undecided Status: New ** Tags: amd64 apport-bug vivid -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1441053 Title: Two network adapters on same LAN causes 30s drop-outs To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/network-manager/+bug/1441053/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
