Did this issue start happening after an update/upgrade? Was there a prior kernel version where you were not having this particular problem?
Would it be possible for you to test the latest upstream kernel? Refer to https://wiki.ubuntu.com/KernelMainlineBuilds . Please test the latest v4.15 kernel[0]. If this bug is fixed in the mainline kernel, please add the following tag 'kernel-fixed-upstream'. If the mainline kernel does not fix this bug, please add the tag: 'kernel-bug-exists-upstream'. Once testing of the upstream kernel is complete, please mark this bug as "Confirmed". Thanks in advance. [0] http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.15 ** Changed in: linux (Ubuntu) Importance: Undecided => Medium ** Changed in: linux (Ubuntu) Status: Confirmed => Incomplete -- 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/1745727 Title: Wifi stops working on Del XPS 9360 Status in linux package in Ubuntu: Incomplete Bug description: I am running a a Dell XPS 9360 laptop and the wifi started to sometime "hang" this week after an update (not sure which one). Running Ubuntu 17.10 (upgraded from Gnome Ubuntu recently) $lsb_release -rd Description: Ubuntu 17.10 Release: 17.10 I observed that five~ error messages like these popup from time to time in dmesg: [ 6000.482060] pcieport 0000:00:1c.4: AER: Corrected error received: id=00e4 [ 6000.482082] pcieport 0000:00:1c.4: PCIe Bus Error: severity=Corrected, type=Data Link Layer, id=00e4(Transmitter ID) [ 6000.482095] pcieport 0000:00:1c.4: device [8086:9d14] error status/mask=00001000/00002000 [ 6000.482105] pcieport 0000:00:1c.4: [12] Replay Timer Timeout A similar report exists for errors like this: 1521173 but not sure if it is related to the wifi problem. Most commenters in that report runs Realtek Wifi adapters while I have ath. Removing and adding the ath_pci module or disabling and enabling wifi with network manager seems to fix the issue for a while: $ sudo modprobe -r ath10k_pci $ sudo modprobe ath10k_pci ProblemType: Bug DistroRelease: Ubuntu 17.10 Package: linux-image-4.13.0-32-generic 4.13.0-32.35 ProcVersionSignature: Ubuntu 4.13.0-32.35-generic 4.13.13 Uname: Linux 4.13.0-32-generic x86_64 ApportVersion: 2.20.7-0ubuntu3.7 Architecture: amd64 AudioDevicesInUse: USER PID ACCESS COMMAND /dev/snd/controlC0: niklas 3554 F.... pulseaudio CurrentDesktop: GNOME Date: Sat Jan 27 12:11:31 2018 HibernationDevice: RESUME=UUID=5eda62e7-dbb8-402c-b33b-311c418b4f78 InstallationDate: Installed on 2017-09-27 (121 days ago) InstallationMedia: Ubuntu-GNOME 17.04 "Zesty Zapus" - Release amd64 (20170412) Lsusb: Bus 002 Device 001: ID 1d6b:0003 Linux Foundation 3.0 root hub Bus 001 Device 004: ID 0c45:670c Microdia Bus 001 Device 003: ID 04f3:2234 Elan Microelectronics Corp. Bus 001 Device 002: ID 0cf3:e300 Atheros Communications, Inc. Bus 001 Device 001: ID 1d6b:0002 Linux Foundation 2.0 root hub MachineType: Dell Inc. XPS 13 9360 ProcFB: 0 inteldrmfb ProcKernelCmdLine: BOOT_IMAGE=/vmlinuz-4.13.0-32-generic.efi.signed root=/dev/mapper/ubuntu--gnome--vg-root ro quiet splash vt.handoff=7 RelatedPackageVersions: linux-restricted-modules-4.13.0-32-generic N/A linux-backports-modules-4.13.0-32-generic N/A linux-firmware 1.169.2 SourcePackage: linux UpgradeStatus: Upgraded to artful on 2018-01-20 (7 days ago) dmi.bios.date: 12/12/2017 dmi.bios.vendor: Dell Inc. dmi.bios.version: 2.5.0 dmi.board.name: 06CC14 dmi.board.vendor: Dell Inc. dmi.board.version: A00 dmi.chassis.type: 9 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvr2.5.0:bd12/12/2017:svnDellInc.:pnXPS139360:pvr:rvnDellInc.:rn06CC14:rvrA00:cvnDellInc.:ct9:cvr: dmi.product.family: XPS dmi.product.name: XPS 13 9360 dmi.sys.vendor: Dell Inc. To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1745727/+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