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[Bug 881660] Re: When an ethernet cable is connected to an otherwise empty switch I can't get internet over wifi

 

This is expected behavior: wired is supposed to be taken in priority
over wireless and over other wireless systems (3G, bluetooth, etc).

As a workaround, you may wish to edit the connection settings, go under
the IPv4 tab then click the Routes button, and check the "Use this
connection only for resources on its network" checkbox. This will avoid
NM using this connection as a default gateway.

Since it's not a bug, I'm closing this as Invalid.

** Changed in: network-manager (Ubuntu)
       Status: New => Invalid

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https://bugs.launchpad.net/bugs/881660

Title:
  When an ethernet cable is connected to an otherwise empty switch I
  can't get internet over wifi

Status in “network-manager” package in Ubuntu:
  Invalid

Bug description:
  When an ethernet cable is connected to an otherwise empty switch I
  can't get internet over wifi

  I connect my computer to a switch that is not connected to any other device.
  I connect my computer over wifi to my home AP
  I disconnect the wired connection with network manager
  I cannot ping google.com
  I unplug the ethernet cable
  I can ping google.com

  ProblemType: Bug
  DistroRelease: Ubuntu 11.10
  Package: network-manager 0.9.1.90-0ubuntu4
  ProcVersionSignature: Ubuntu 3.0.0-12.20-generic 3.0.4
  Uname: Linux 3.0.0-12-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 1.23-0ubuntu3
  Architecture: amd64
  CRDA: Error: [Errno 2] No such file or directory
  Date: Tue Oct 25 21:18:26 2011
  Gconf:
   
  IfupdownConfig:
   auto lo
   iface lo inet loopback
  InstallationMedia: Ubuntu 11.10 "Oneiric Ocelot" - Release amd64 (20111012)
  IpRoute:
   default via 192.168.0.1 dev eth1  proto static 
   169.254.0.0/16 dev eth1  scope link  metric 1000 
   192.168.0.0/24 dev eth1  proto kernel  scope link  src 192.168.0.7  metric 1 
   192.168.0.0/24 dev wlan0  proto kernel  scope link  src 192.168.0.30  metric 2
  Keyfiles: Error: [Errno 2] No such file or directory
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=true
   WimaxEnabled=true
  ProcEnviron:
   LANGUAGE=en_GB:en
   PATH=(custom, no user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  SourcePackage: network-manager
  UpgradeStatus: No upgrade log present (probably fresh install)

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References