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 v4.17 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/v4.17 ** Changed in: linux-firmware (Ubuntu) Importance: Undecided => Medium ** Package changed: linux-firmware (Ubuntu) => linux (Ubuntu) -- You received this bug notification because you are a member of Kernel Packages, which is subscribed to linux-firmware in Ubuntu. https://bugs.launchpad.net/bugs/1776443 Title: iwlwifi-29 kernel timeout queue active on fifo 2 and stuck Status in linux package in Ubuntu: New Bug description: dell inspiron 15 3565 and intel 3165. Difficult to report when wifi is down! Happens sometimes after a few minutes, never more than 30 minutes. Easy to capture journalctl when the network connection hangs. Intel fails on 2.4 GHz or 5 GHz, using several different AP's. The same system runs stable and perfect with a USB dongle Realtek RTL8188CUS, but I have to blacklist iwlwifi in /etc/modprobe.d/modprobe.conf to prevent iwlwifi hanging all network activity while simply scanning and not connected to an AP. I've had similar problems with this system under 17.10, but it has become more reproducible under 18.04. I've back-levelled the driver as far as possible, but they all hang the network. Because version 29 firmware is the latest in the bionic repository, and also on the intel support web site, I won't confuse matters by reporting earlier ubuntu kernels or iwlwifi versions To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1776443/+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