Firmware changes did not help, but the following doubled my speed from 20mbps to 40mbps (still 50% lower than what I got in Windows 7):
vi /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf Change line to wifi.powersave = 2 echo "options iwlwifi 11n_disable=8" | sudo tee /etc/modprobe.d/iwlwifi11n.conf -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1471794 Title: Wifi slow on Intel Corporation Centrino Ultimate-N 6300 To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1471794/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs