In the end I solved this problem by switching to Wicd Network Manager (https://help.ubuntu.com/community/WICD) and the problem has not emerged again.
Note: The default Network Manager is still installed on my system, but I have disabled Networking on it and no longer use it. WICD works better across wifi and wired networks I have found - generally speaking. ** Attachment removed: "AlsaInfo.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442781/+attachment/4372051/+files/AlsaInfo.txt ** Attachment removed: "BootDmesg.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442781/+attachment/4372052/+files/BootDmesg.txt ** Attachment removed: "CRDA.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442781/+attachment/4372053/+files/CRDA.txt ** Attachment removed: "CurrentDmesg.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442781/+attachment/4372054/+files/CurrentDmesg.txt ** Attachment removed: "IwConfig.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442781/+attachment/4372055/+files/IwConfig.txt ** Attachment removed: "Lspci.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442781/+attachment/4372056/+files/Lspci.txt ** Attachment removed: "Lsusb.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442781/+attachment/4372057/+files/Lsusb.txt ** Attachment removed: "ProcCpuinfo.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442781/+attachment/4372058/+files/ProcCpuinfo.txt ** Attachment removed: "ProcEnviron.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442781/+attachment/4372059/+files/ProcEnviron.txt ** Attachment removed: "ProcInterrupts.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442781/+attachment/4372060/+files/ProcInterrupts.txt ** Attachment removed: "PulseList.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442781/+attachment/4372062/+files/PulseList.txt ** Attachment removed: "ProcModules.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442781/+attachment/4372061/+files/ProcModules.txt ** Attachment removed: "RfKill.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442781/+attachment/4372063/+files/RfKill.txt ** Attachment removed: "UdevDb.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442781/+attachment/4372064/+files/UdevDb.txt ** Attachment removed: "UdevLog.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442781/+attachment/4372065/+files/UdevLog.txt ** Attachment removed: "WifiSyslog.txt" https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442781/+attachment/4372066/+files/WifiSyslog.txt ** Description changed: When I attempt to use wifi it keeps saying its authenticating and then does not connect. I can see all the 2G wifi networks. Network manager will keep trying for up to an hour and then suddenly it will connect like magic! Also, I have installed both WICD Network Manager and Ubuntu's Network Manager on my system, but I am only using Ubuntu's Network Manager. I've tried: * Using software updater to update my system fully * Restarting my laptop * Restarting the router * Connecting to the wifi with my phone (works fine!) whilst I am struggling to connect with my laptop * Disabling network manager and re-enabling it * Disabling wifi then re-enabling it * Disabling wifi and networking and then re-enabling it * In Terminal: sudo service network-manager restart - - --- - ApportVersion: 2.14.1-0ubuntu3.8 - Architecture: amd64 - AudioDevicesInUse: - USER PID ACCESS COMMAND - /dev/snd/controlC1: jas 3233 F.... pulseaudio - /dev/snd/controlC0: jas 3233 F.... pulseaudio - CurrentDesktop: Unity - DistroRelease: Ubuntu 14.04 - EcryptfsInUse: Yes - InstallationDate: Installed on 2015-03-23 (18 days ago) - InstallationMedia: Ubuntu 14.04.2 LTS "Trusty Tahr" - Release amd64 (20150218.1) - MachineType: LENOVO 20378 - Package: linux (not installed) - ProcFB: 0 inteldrmfb - ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.16.0-33-generic root=UUID=3bbe0750-5817-4b2c-a1c7-07ab9d8ea1fb ro quiet splash vt.handoff=7 - ProcVersionSignature: Ubuntu 3.16.0-33.44~14.04.1-generic 3.16.7-ckt7 - RelatedPackageVersions: - linux-restricted-modules-3.16.0-33-generic N/A - linux-backports-modules-3.16.0-33-generic N/A - linux-firmware 1.127.11 - Tags: trusty - Uname: Linux 3.16.0-33-generic x86_64 - UpgradeStatus: No upgrade log present (probably fresh install) - UserGroups: adm cdrom dip lpadmin plugdev sambashare sudo - _MarkForUpload: True - dmi.bios.date: 08/18/2014 - dmi.bios.vendor: LENOVO - dmi.bios.version: 9ECN31WW(V1.14) - dmi.board.asset.tag: 31900058WIN - dmi.board.name: Lenovo Y50-70 - dmi.board.vendor: LENOVO - dmi.board.version: 31900058WIN - dmi.chassis.asset.tag: 31900058WIN - dmi.chassis.type: 10 - dmi.chassis.vendor: LENOVO - dmi.chassis.version: Lenovo Y50-70 - dmi.modalias: dmi:bvnLENOVO:bvr9ECN31WW(V1.14):bd08/18/2014:svnLENOVO:pn20378:pvrLenovoY50-70:rvnLENOVO:rnLenovoY50-70:rvr31900058WIN:cvnLENOVO:ct10:cvrLenovoY50-70: - dmi.product.name: 20378 - dmi.product.version: Lenovo Y50-70 - dmi.sys.vendor: LENOVO ** Changed in: linux (Ubuntu) Status: Incomplete => Invalid -- 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/1442781 Title: wifi continually tries to authenticate but fails on Ubuntu 14.04 LTS with network manager Status in linux package in Ubuntu: Invalid Bug description: When I attempt to use wifi it keeps saying its authenticating and then does not connect. I can see all the 2G wifi networks. Network manager will keep trying for up to an hour and then suddenly it will connect like magic! Also, I have installed both WICD Network Manager and Ubuntu's Network Manager on my system, but I am only using Ubuntu's Network Manager. I've tried: * Using software updater to update my system fully * Restarting my laptop * Restarting the router * Connecting to the wifi with my phone (works fine!) whilst I am struggling to connect with my laptop * Disabling network manager and re-enabling it * Disabling wifi then re-enabling it * Disabling wifi and networking and then re-enabling it * In Terminal: sudo service network-manager restart To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1442781/+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
