I am facing this same issue of high packet loss in my Lenovo T430s. I am getting a packet loss of 30~50% which is absurd.
Here is lspci output: 00:00.0 Host bridge: Intel Corporation 3rd Gen Core processor DRAM Controller (rev 09) 00:02.0 VGA compatible controller: Intel Corporation 3rd Gen Core processor Graphics Controller (rev 09) 00:14.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB xHCI Host Controller (rev 04) 00:16.0 Communication controller: Intel Corporation 7 Series/C210 Series Chipset Family MEI Controller #1 (rev 04) 00:19.0 Ethernet controller: Intel Corporation 82579LM Gigabit Network Connection (rev 04) 00:1a.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #2 (rev 04) 00:1b.0 Audio device: Intel Corporation 7 Series/C210 Series Chipset Family High Definition Audio Controller (rev 04) 00:1c.0 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 1 (rev c4) 00:1c.1 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 2 (rev c4) 00:1c.2 PCI bridge: Intel Corporation 7 Series/C210 Series Chipset Family PCI Express Root Port 3 (rev c4) 00:1d.0 USB controller: Intel Corporation 7 Series/C210 Series Chipset Family USB Enhanced Host Controller #1 (rev 04) 00:1f.0 ISA bridge: Intel Corporation QM77 Express Chipset LPC Controller (rev 04) 00:1f.2 SATA controller: Intel Corporation 7 Series Chipset Family 6-port SATA Controller [AHCI mode] (rev 04) 00:1f.3 SMBus: Intel Corporation 7 Series/C210 Series Chipset Family SMBus Controller (rev 04) 03:00.0 Network controller: Realtek Semiconductor Co., Ltd. RTL8188CE 802.11b/g/n WiFi Adapter (rev 01) 04:00.0 System peripheral: Ricoh Co Ltd PCIe SDXC/MMC Host Controller (rev 07) -- 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/1401741 Title: rtl8188ee wireless driver high packet loss Status in linux package in Ubuntu: Expired Bug description: This is a toshiba c55d laptop. I've seen this issue since trusty, very bad packet loss,varrying in ping from 10%-45% to Verizon MI424WR- GEN3I AP with WPA2 running in Compatibility Mode(802.11b/g/n). No other devices on network have ever had this issue, in fact any loss of ICMP packets almost never occurs on other devices from same location. Already tried mainline (3.18.0) with no noticeable improvement. I will be trying the Realtek (from their website) - didn't work, not for this kernel. https://github.com/FreedomBen/rtl8188ce-linux-driver - didn't help. ProblemType: Bug DistroRelease: Ubuntu 14.10 Package: linux-image-3.16.0-28-generic 3.16.0-28.37 ProcVersionSignature: Ubuntu 3.16.0-28.37-generic 3.16.7-ckt1 Uname: Linux 3.16.0-28-generic x86_64 ApportVersion: 2.14.7-0ubuntu8 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: erica 2366 F.... pulseaudio /dev/snd/controlC0: erica 2366 F.... pulseaudio CurrentDesktop: Unity Date: Thu Dec 11 22:01:36 2014 HibernationDevice: RESUME=UUID=47ff810c-172e-4cd8-b7b3-12f03d42cf70 InstallationDate: Installed on 2014-05-29 (196 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Release amd64 (20140417) MachineType: TOSHIBA Satellite C55D-A ProcFB: 0 radeondrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-28-generic.efi.signed root=UUID=3c0c45ee-7e15-45e4-988c-339d83805035 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.16.0-28-generic N/A linux-backports-modules-3.16.0-28-generic N/A linux-firmware 1.138 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no SourcePackage: linux UpgradeStatus: Upgraded to utopic on 2014-10-02 (70 days ago) dmi.bios.date: 12/25/2013 dmi.bios.vendor: Insyde Corp. dmi.bios.version: 1.70 dmi.board.asset.tag: Base Board Asset Tag dmi.board.name: Portable PC dmi.board.vendor: TOSHIBA dmi.board.version: MP dmi.chassis.asset.tag: No Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: OEM Chassis Manufacturer dmi.chassis.version: OEM Chassis Version dmi.modalias: dmi:bvnInsydeCorp.:bvr1.70:bd12/25/2013:svnTOSHIBA:pnSatelliteC55D-A:pvrPSCFWU-04C031:rvnTOSHIBA:rnPortablePC:rvrMP:cvnOEMChassisManufacturer:ct10:cvrOEMChassisVersion: dmi.product.name: Satellite C55D-A dmi.product.version: PSCFWU-04C031 dmi.sys.vendor: TOSHIBA To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1401741/+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
