I am having the same issue on Ubuntu 20.04. Card is Intel AC 9560. I am dual-booting WIndows 10 and on Windows, I get consistent top speeds.
I performed all tests and changes OP did and I have the same results. Laptop is ASUS FX504GM. What I noticed is that after either unloading/loading the iwlwifi module, or using nmcli to turn networking off/on, sometimes, the speed tests ran in the first 10 seconds, will result in top speeds. If I need to provide more details, I will, but based on what drizzle provided, I am having the exact same issue. -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1906273 Title: iwlwifi - very slow for intel 9260/9560 wireless cards To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux-firmware/+bug/1906273/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
