Same here after upgrading from Ubuntu 14.04.2 -> 14.10 -> 15.04. Using the Wicd workaround currently to get Wifi to work.
-- You received this bug notification because you are a member of Ubuntu Touch seeded packages, which is subscribed to network-manager in Ubuntu. https://bugs.launchpad.net/bugs/1444226 Title: [Kubuntu 15.04 beta] can't connect to wifi with Ralink RT2561/RT61 and NetworkManager Status in network-manager package in Ubuntu: Confirmed Bug description: Hello. I have a Ralink with RT2561/RT61 chip: $ lspci | grep -i network 05:00.0 Network controller: Ralink corp. RT2561/RT61 802.11g PCI In Kubuntu 15.04 my connection is very unstable using NetworkManager. Most of the time the connection is not established. And very few times the connection is established but after a few seconds the connection drops. Unfortunately in this new Kubuntu version if you try to uninstall "network-manager" then "plasma-desktop" is requested to be uninstalled (apparently because of "plasma-nm"). WORKAROUND: I installed Wicd from Kubuntu 14.04 using "chroot": 1- Start the system and try not use Network Manager 2- kill network manager $ sudo pkill -9 NetworkManager 3- Start wicd from "menu" > "internet" ProblemType: Bug DistroRelease: Ubuntu 15.04 Package: linux-image-3.19.0-14-generic 3.19.0-14.14 ProcVersionSignature: Ubuntu 3.19.0-14.14-generic 3.19.3 Uname: Linux 3.19.0-14-generic x86_64 ApportVersion: 2.17.1-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: nulluser 1308 F.... pulseaudio /dev/snd/controlC0: nulluser 1308 F.... pulseaudio CurrentDesktop: KDE Date: Tue Apr 14 22:22:23 2015 HibernationDevice: RESUME=UUID=1edec07e-cb6e-4ca2-b03e-29d7ef434bc8 InstallationDate: Installed on 2015-04-12 (2 days ago) InstallationMedia: Kubuntu 15.04 "Vivid Vervet" - Beta amd64 (20150408) MachineType: System manufacturer System Product Name ProcFB: 0 nouveaufb ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.19.0-14-generic root=UUID=0f5fd4c5-56a1-494b-9513-074a3e1a11f1 ro quiet splash RelatedPackageVersions: linux-restricted-modules-3.19.0-14-generic N/A linux-backports-modules-3.19.0-14-generic N/A linux-firmware 1.143 RfKill: 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no 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: 08/14/2013 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 2204 dmi.board.asset.tag: To be filled by O.E.M. dmi.board.name: P8Z77-V LX 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.:bvr2204:bd08/14/2013:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKCOMPUTERINC.:rnP8Z77-VLX: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/network-manager/+bug/1444226/+subscriptions -- Mailing list: https://launchpad.net/~touch-packages Post to : touch-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~touch-packages More help : https://help.launchpad.net/ListHelp