I had exactly the same problem too on 15.10. Restarting the iwlwifi kernel module fixed it, but that's not ideal.
My machine is a thinkpad x1 carbon (3rd generation) and device is a Intel 7265D wifi device. -- 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/1570595 Title: Intel 7265 wifi drops and won't reconnect Status in linux package in Ubuntu: Confirmed Status in linux source package in Xenial: Confirmed Bug description: My my T450 has Intel 7265 wifi. Sometimes it just seems to disappear from network manager. I end up having to rmmod the iwlwifi module and re-add it to make it see wireless access points again. ProblemType: Bug DistroRelease: Ubuntu 16.04 Package: linux-image-4.4.0-18-generic 4.4.0-18.34 ProcVersionSignature: Ubuntu 4.4.0-18.34-generic 4.4.6 Uname: Linux 4.4.0-18-generic x86_64 ApportVersion: 2.20.1-0ubuntu1 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC1: alan 2224 F.... pulseaudio /dev/snd/controlC0: alan 2224 F.... pulseaudio CurrentDesktop: Unity Date: Thu Apr 14 21:43:35 2016 HibernationDevice: RESUME=UUID=f39f9990-20e6-4bbf-b8bf-46316b7b6d42 InstallationDate: Installed on 2016-04-08 (6 days ago) InstallationMedia: Ubuntu 16.04 LTS "Xenial Xerus" - Beta amd64 (20160407) MachineType: LENOVO 20BV001BUK ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.4.0-18-generic.efi.signed root=/dev/mapper/ubuntu--vg-root ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.4.0-18-generic N/A linux-backports-modules-4.4.0-18-generic N/A linux-firmware 1.157 SourcePackage: linux UpgradeStatus: No upgrade log present (probably fresh install) dmi.bios.date: 01/27/2016 dmi.bios.vendor: LENOVO dmi.bios.version: JBET56WW (1.21 ) dmi.board.asset.tag: Not Available dmi.board.name: 20BV001BUK dmi.board.vendor: LENOVO dmi.board.version: 0B98417 WIN dmi.chassis.asset.tag: No Asset Information dmi.chassis.type: 10 dmi.chassis.vendor: LENOVO dmi.chassis.version: None dmi.modalias: dmi:bvnLENOVO:bvrJBET56WW(1.21):bd01/27/2016:svnLENOVO:pn20BV001BUK:pvrThinkPadT450:rvnLENOVO:rn20BV001BUK:rvr0B98417WIN:cvnLENOVO:ct10:cvrNone: dmi.product.name: 20BV001BUK dmi.product.version: ThinkPad T450 dmi.sys.vendor: LENOVO To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1570595/+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