Public bug reported: 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 ** Affects: linux-firmware (Ubuntu) Importance: Undecided Status: New ** Tags: bionic hw-specific kernel-bug ** Description changed: 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) and is - also very unreliable. + 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 -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. 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 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1772467/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
