Hello. I have a Ralink with RT2561/RT61 chip. In Kubuntu 15.04 my connection is very unstable using NetworkManager, but with Wicd my connection is stable. Could you try Wicd? The problem is that in Kubuntu 15.04 is not possible uninstall "network-manager" because it also uninstalled "plasma-desktop". To test you should do:
$ sudo apt-get install wicd wicd-gtk During installation it will ask you to add your user to the group "netdev". $ sudo pkill -9 NetworkManager Start wicd from "menu" > "internet". If it does not start, you do: $ sudo rm /var/run/wicd/wicd.pid and try again. You note that Wicd does not automatically detect the encryption mode for your network. You must choose the password type from propierties. Probabily if you use WEP you should choose Wep (Passphrase), or if it Wpa you choose WPA 1/2 (Hex [0-9/A-F]). Also note that wicd connects to internet but will not tell you that you're connected, you try from the browser to know you are connected. -- 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/1442908 Title: Realtek RTL8723BE wireless card drops connection in Linux kernel 3.19.0-13 Status in linux package in Ubuntu: Incomplete Bug description: Blacklisting ideapad_laptop makes Realtek RTL8723BE wireless card to work, but the connection is being drop after some time. This is an old bug but still happens in ubuntu/kubuntu 15.04, the Linux Kernel version is 3.19.0-13. Card: Network controller: Realtek Semiconductor Co., Ltd. RTL8723BE PCIe Wireless Network Adapter 03:00.0 Eth ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-13-generic 3.19.0-13.13 ProcVersionSignature: Ubuntu 3.19.0-13.13-generic 3.19.3 Uname: Linux 3.19.0-13-generic x86_64 ApportVersion: 2.17-0ubuntu2 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: octavio 1660 F.... pulseaudio CurrentDesktop: KDE Date: Sat Apr 11 09:43:48 2015 HibernationDevice: RESUME=UUID=a235be69-e7e1-4220-b191-50f0fa2158d1 InstallationDate: Installed on 2015-04-10 (0 days ago) InstallationMedia: Kubuntu 15.04 "Vivid Vervet" - Beta amd64 (20150409) MachineType: LENOVO 80FY ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-13-generic root=UUID=9254a6a3-248e-4e61-8479-7ed07edb5bf7 ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-3.19.0-13-generic N/A linux-backports-modules-3.19.0-13-generic N/A linux-firmware 1.143 SourcePackage: linux UdevLog: Error: [Errno 2] No such file or directory: '/var/log/udev' UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 07/18/2014 dmi.bios.vendor: LENOVO dmi.bios.version: A7CN40WW dmi.board.asset.tag: NO Asset Tag dmi.board.name: Lancer 4A6 dmi.board.vendor: LENOVO dmi.board.version: 31900059WIN dmi.chassis.asset.tag: NO Asset Tag dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: Lenovo G40-30 dmi.modalias: dmi:bvnLENOVO:bvrA7CN40WW:bd07/18/2014:svnLENOVO:pn80FY:pvrLenovoG40-30:rvnLENOVO:rnLancer4A6:rvr31900059WIN:cvnLENOVO:ct10:cvrLenovoG40-30: dmi.product.name: 80FY dmi.product.version: Lenovo G40-30 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442908/+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