Public bug reported:

To reproduce:

1. Open network manager.
2. Open the current network connection.
3. Change it from "DHCP" (the default) to "DHCP (addresses only)" and enter 
some DNS servers.
4. Accept all changes.

What happens: All connections through that interface are dropped and
then the interface comes back up with the new addressing.

What I expect to happen: The new DNS addresses should be used without
dropping existing connections.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: network-manager 0.9.4.0-0ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-22.35-generic 3.2.14
Uname: Linux 3.2.0-22-generic x86_64
NonfreeKernelModules: nvidia
ApportVersion: 2.0-0ubuntu4
Architecture: amd64
CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 not 
found.
Date: Wed Apr 11 22:22:12 2012
IfupdownConfig:
 auto lo
 iface lo inet loopback
InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
IwConfig:
 lo        no wireless extensions.
 
 eth0      no wireless extensions.
NetworkManager.state:
 [main]
 NetworkingEnabled=true
 WirelessEnabled=true
 WWANEnabled=true
 WimaxEnabled=true
ProcEnviron:
 LANGUAGE=en_GB:en
 TERM=xterm
 PATH=(custom, user)
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
RfKill:
 0: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no
SourcePackage: network-manager
UpgradeStatus: No upgrade log present (probably fresh install)
mtime.conffile..etc.NetworkManager.NetworkManager.conf: 
2012-04-11T22:22:09.688888

** Affects: network-manager (Ubuntu)
     Importance: Undecided
         Status: New


** Tags: amd64 apport-bug precise

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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/979372

Title:
  modifying dns servers causes network to disconnect

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

Bug description:
  To reproduce:

  1. Open network manager.
  2. Open the current network connection.
  3. Change it from "DHCP" (the default) to "DHCP (addresses only)" and enter 
some DNS servers.
  4. Accept all changes.

  What happens: All connections through that interface are dropped and
  then the interface comes back up with the new addressing.

  What I expect to happen: The new DNS addresses should be used without
  dropping existing connections.

  ProblemType: Bug
  DistroRelease: Ubuntu 12.04
  Package: network-manager 0.9.4.0-0ubuntu2
  ProcVersionSignature: Ubuntu 3.2.0-22.35-generic 3.2.14
  Uname: Linux 3.2.0-22-generic x86_64
  NonfreeKernelModules: nvidia
  ApportVersion: 2.0-0ubuntu4
  Architecture: amd64
  CRDA: Error: command ['iw', 'reg', 'get'] failed with exit code 1: nl80211 
not found.
  Date: Wed Apr 11 22:22:12 2012
  IfupdownConfig:
   auto lo
   iface lo inet loopback
  InstallationMedia: Ubuntu 12.04 LTS "Precise Pangolin" - Beta amd64 (20120328)
  IwConfig:
   lo        no wireless extensions.
   
   eth0      no wireless extensions.
  NetworkManager.state:
   [main]
   NetworkingEnabled=true
   WirelessEnabled=true
   WWANEnabled=true
   WimaxEnabled=true
  ProcEnviron:
   LANGUAGE=en_GB:en
   TERM=xterm
   PATH=(custom, user)
   LANG=en_GB.UTF-8
   SHELL=/bin/bash
  RfKill:
   0: hci0: Bluetooth
        Soft blocked: no
        Hard blocked: no
  SourcePackage: network-manager
  UpgradeStatus: No upgrade log present (probably fresh install)
  mtime.conffile..etc.NetworkManager.NetworkManager.conf: 
2012-04-11T22:22:09.688888

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