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While running an Ubuntu kernel (not a mainline or third-party kernel)
please enter the following command in a terminal window:

apport-collect 1772467

and then change the status of the bug to 'Confirmed'.

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This change has been made by an automated script, maintained by the
Ubuntu Kernel Team.

** Changed in: linux (Ubuntu)
       Status: New => Incomplete

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https://bugs.launchpad.net/bugs/1772467

Title:
  Driver iwlwifi for Intel Wireless-AC 9560 is slow and unreliable in
  kernel 4.15.0-20-generic

Status in linux package in Ubuntu:
  Incomplete

Bug description:
  This is a hardware specific issue with Ubuntu 18.04 and kernel
  4.15.0-20-generic. The driver for the Intel AC 9560 wireless chip
  causes the problem. Driver location:
  https://www.intel.com/content/www/us/en/support/articles/000005511
  /network-and-i-o/wireless-networking.html

  The wifi connection is very slow (1MB instead of 100MB possible
  download speed, upload speed is normal) and is also very unreliable.

  When installing the 4.16 kernel from mainline kernel
  http://kernel.ubuntu.com/~kernel-ppa/mainline/v4.16/ the described
  problem is solved.

  Sytem data:
  Description:  Ubuntu 18.04 LTS
  Release:      18.04
  Package:
  4.15.0-20-generic
  driver=iwlwifi driverversion=4.15.0-20-generic firmware=34.0.0

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