I got the same problem (slow speed of wifi) with the ATHEROS AR928X from an Acer aspire AS3410T and with the ATHEROS AR9285 from an Asus X70IC. The two computers under ubuntu 16.04 with the last update. It work perfectly under windows 7 with this two computers.
-- 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/1586650 Title: Ubuntu 16.04 touchy WiFi Internet Status in linux package in Ubuntu: Expired Bug description: When I installed Ubuntu 16.04 I had to reconfigure our modem and router setup from bridge mode to DHCP mode. As a result, I lost all ability on my computer to connect to WiFi. However, the other eight connected devices (ex. iPad, PlayStation) have Internet connection. After power-cycling our router and modem I'm now able to connect but I get 2 Mbps download speed, and web pages load up slowly. --- ApportVersion: 2.14.1-0ubuntu3.21 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: nicholas 1993 F.... pulseaudio /dev/snd/controlC0: nicholas 1993 F.... pulseaudio CurrentDesktop: Unity DistroRelease: Ubuntu 14.04 HibernationDevice: RESUME=UUID=65e816b7-679f-4d88-9cef-c4d5eeb89f23 InstallationDate: Installed on 2016-05-30 (7 days ago) InstallationMedia: Ubuntu 14.04.1 LTS "Trusty Tahr" - Release amd64 (20140722.2) MachineType: System manufacturer System Product Name NonfreeKernelModules: nvidia Package: linux (not installed) ProcFB: ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-87-generic root=UUID=6b080b23-fe79-4a22-9dec-bd3d029dda95 ro quiet splash ProcVersionSignature: Ubuntu 3.13.0-87.133-generic 3.13.11-ckt39 RelatedPackageVersions: linux-restricted-modules-3.13.0-87-generic N/A linux-backports-modules-3.13.0-87-generic N/A linux-firmware 1.127.22 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no Tags: trusty Uname: Linux 3.13.0-87-generic x86_64 UpgradeStatus: No upgrade log present (probably fresh install) UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo _MarkForUpload: True dmi.bios.date: 07/23/2012 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0803 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: M4A78LT-M-LE dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev X.0x dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0803:bd07/23/2012:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM4A78LT-M-LE:rvrRevX.0x:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1586650/+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