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[Dmitry <1275161@xxxxxxxxxxxxxxxxxx>]

if someone use router, try turnoff IGMP option, restart router, turnon
IGMP option (needed), maybe is router bug, but is known problem "MTU
black hole" when in network path someone turn off IGMP and packets are
lost, this is why some sites open, some not

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https://bugs.launchpad.net/bugs/1275161

Title:
  Realtek driver r8169 slow network speed

Status in linux package in Ubuntu:
  Triaged
Status in linux package in Gentoo Linux:
  New

Bug description:
  Network speed variable, some sites not open or very slow (example: amazon.com).
  Replace driver with r8168 from this http://www.realtek.com/downloads/downloadsView.aspx?Langid=1&PNid=5&PFid=5&Level=5&Conn=4&DownTypeID=3&GetDown=false#2 not help.

  ubuntu amd64 13.10 (also tested daily build 14.04 30 Jan 2014)
  kernel 3.11.0-15-generic

  lspci -nn | grep Ethernet
  02:00.0 Ethernet controller [0200]: Realtek Semiconductor Co., Ltd. RTL8111/8168/8411 PCI Express Gigabit Ethernet Controller [10ec:8168] (rev 0c)
  --- 
  ApportVersion: 2.12.5-0ubuntu2.2
  Architecture: amd64
  AudioDevicesInUse:
   USER        PID ACCESS COMMAND
   /dev/snd/controlC0:  dem        1250 F.... pulseaudio
   /dev/snd/controlC1:  dem        1250 F.... pulseaudio
   /dev/snd/pcmC1D0c:   dem        1250 F...m pulseaudio
   /dev/snd/pcmC1D0p:   dem        1250 F...m pulseaudio
  CRDA: Error: [Errno 2] No such file or directory
  CurrentDmesg: [  712.730809] hda-intel 0000:00:1b.0: Unstable LPIB (19200 >= 1920); disabling LPIB delay counting
  DistroRelease: Ubuntu 13.10
  IwConfig: Error: [Errno 2] No such file or directory
  MachineType: MSI MS-7817
  MarkForUpload: True
  Package: linux (not installed)
  ProcFB: 0 inteldrmfb
  ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.11.0-15-generic root=UUID=2982e0ae-6485-4894-9306-01c72c340d13 ro
  ProcVersionSignature: Ubuntu 3.11.0-15.25-generic 3.11.10
  RelatedPackageVersions:
   linux-restricted-modules-3.11.0-15-generic N/A
   linux-backports-modules-3.11.0-15-generic  N/A
   linux-firmware                             1.116
  RfKill: Error: [Errno 2] No such file or directory
  Tags:  saucy
  Uname: Linux 3.11.0-15-generic x86_64
  UpgradeStatus: No upgrade log present (probably fresh install)
  UserGroups: adm audio cdrom dip lpadmin plugdev sambashare sudo video
  dmi.bios.date: 06/20/2013
  dmi.bios.vendor: American Megatrends Inc.
  dmi.bios.version: V1.0
  dmi.board.asset.tag: To be filled by O.E.M.
  dmi.board.name: H81M-P33 (MS-7817)
  dmi.board.vendor: MSI
  dmi.board.version: 1.0
  dmi.chassis.asset.tag: To Be Filled By O.E.M.
  dmi.chassis.type: 3
  dmi.chassis.vendor: MSI
  dmi.chassis.version: 1.0
  dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvrV1.0:bd06/20/2013:svnMSI:pnMS-7817:pvr1.0:rvnMSI:rnH81M-P33(MS-7817):rvr1.0:cvnMSI:ct3:cvr1.0:
  dmi.product.name: MS-7817
  dmi.product.version: 1.0
  dmi.sys.vendor: MSI

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