I have a lenovo ideapad laptop. I installed Ubuntu 16.04.02 in it and the WiFi works really bad. It randomly work fine, disconnects by itself, sometimes doesn't show the available WiFi networks, and even when I get a connection it eventually disconnects.

Is there any known problems, and solutions, for this ?

The output of the command lspci -knn | grep Net -A3 is:

02:00.0 Network controller [0280]: Qualcomm Atheros Device [168c:0042] (rev 30)
    Subsystem: Lenovo Device [17aa:4035]
    Kernel driver in use: ath10k_pci
    Kernel modules: ath10k_pci
  • 1
    Please edit your question and add output of lspci -knn | grep Net -A3 terminal command.
    – Pilot6
    Feb 19 '17 at 9:31

These newer Atheros wifi cards do not work well with power management enabled. You can disable power management with

sudo sed -i 's/wifi.powersave = 3/wifi.powersave = 2/' /etc/NetworkManager/conf.d/default-wifi-powersave-on.conf


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Not the answer you're looking for? Browse other questions tagged or ask your own question.