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
-- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux in Ubuntu. 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1275161/+subscriptions -- Mailing list: https://launchpad.net/~kernel-packages Post to : kernel-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~kernel-packages More help : https://help.launchpad.net/ListHelp