So I added the tag (bug also in mainline). My testing concerned the default hotspot settings which are obtained using the Control Centre (not the NetworkManager popup menu). It is the "WEP 40/128-bit Key" network. I tested two variants:
1.) latest upstream kernel (3.14.0-031400rc6) on the hotspot-generating machine AND default kernel (3.13.0-16) on the connected machine. 2.) latest upstream kernels on both machines -- 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/1289712 Title: extremly slow wireless connection between two notebooks Status in “linux” package in Ubuntu: Confirmed Bug description: I am trying to transfer data between two notebooks connected using their Wi-Fi radios. Machine 1: HP ZBook 15 configured to serve as a Wi-Fi hotspot. Network controller: Intel Corporation Centrino Advanced-N 6235 (rev 24). The machine also has a mobile broadband USB device (Huawei E3251) which connects it to the internet. Machine 2: Fujitsu-Siemens AMILO Pro V3205. It is connected to machine 1 using wireless adapter. Network controller: Intel Corporation PRO/Wireless 3945ABG [Golan] Network Connection (rev 02). Both machines run latest development version of ubuntu 14.04. (Machine 1 a 64-bit system, machine 2 a 32-bit system.) The Wi-Fi hotspot (running on machine 1) employs the WEP authentication. The connection speed is only about 0.1 MiB/s, i.e. about 0.8 Mbps. This is far below what the Wi-Fi adapters in both machines are able to do. The particular program I used was rsync. The data were transferred from machine 2 to machine 1. The speed was the same slow for rsync invoked either on machine 1 or 2. Yesterday I tried a different way to connect the two laptops: I created a Wi-Fi hotspot using an android smartphone with a WPA2 PSK autentication. That other wireless connection between the two laptops was at least one order of magnitude faster. (I do not remember precise number but surely it was much much faster.) ProblemType: Bug DistroRelease: Ubuntu 14.04 Package: linux-image-3.13.0-16-generic 3.13.0-16.36 ProcVersionSignature: Ubuntu 3.13.0-16.36-generic 3.13.5 Uname: Linux 3.13.0-16-generic x86_64 ApportVersion: 2.13.3-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: konopka 1643 F.... pulseaudio /dev/snd/controlC0: konopka 1643 F.... pulseaudio CurrentDesktop: Unity Date: Sat Mar 8 08:01:34 2014 HibernationDevice: RESUME=UUID=bed0cd64-3da5-43a7-b4a7-6cc72965a402 InstallationDate: Installed on 2014-01-31 (35 days ago) InstallationMedia: Ubuntu 14.04 LTS "Trusty Tahr" - Alpha amd64 (20140130) MachineType: Hewlett-Packard HP ZBook 15 ProcFB: 0 inteldrmfb 1 nouveaufb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.13.0-16-generic root=UUID=56c3d081-90f2-445f-ade1-574586237cd6 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.13.0-16-generic N/A linux-backports-modules-3.13.0-16-generic N/A linux-firmware 1.126 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 10/25/2013 dmi.bios.vendor: Hewlett-Packard dmi.bios.version: L70 Ver. 01.06 dmi.board.name: 1909 dmi.board.vendor: Hewlett-Packard dmi.board.version: KBC Version 94.47 dmi.chassis.type: 10 dmi.chassis.vendor: Hewlett-Packard dmi.modalias: dmi:bvnHewlett-Packard:bvrL70Ver.01.06:bd10/25/2013:svnHewlett-Packard:pnHPZBook15:pvrA3009DD10303:rvnHewlett-Packard:rn1909:rvrKBCVersion94.47:cvnHewlett-Packard:ct10:cvr: dmi.product.name: HP ZBook 15 dmi.product.version: A3009DD10303 dmi.sys.vendor: Hewlett-Packard To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1289712/+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
