Ubuntu: Can't turn on wifi, Hard-blocked 16.04, HP 14



Question:

When I open the connection setting then I press

"wifi key" , airplane mode switches on and off. When I switch the wifi toggle on wireless network, it turns off again, I mean I am not able to turn on the wifi.

farisul@farisul-notebook:~$ lspci -knn | grep Net -A2; rfkill list  03:00.0 Network controller [0280]: Qualcomm Atheros QCA9565 / AR9565 Wireless Network Adapter [168c:0036] (rev 01)      DeviceName: Qualcomm Atheros QCA9565 802.11b/g/n WiFi      Subsystem: Hewlett-Packard Company QCA9565 / AR9565 Wireless Network Adapter [103c:217f]      Kernel driver in use: ath9k      Kernel modules: ath9k  0: phy0: Wireless LAN      Soft blocked: no      Hard blocked: no  1: hp-wifi: Wireless LAN      Soft blocked: no      Hard blocked: yes  2: hp-bluetooth: Bluetooth      Soft blocked: no      Hard blocked: yes  3: hci0: Bluetooth      Soft blocked: no      Hard blocked: no  

How ca I fix it?


Solution:1

I had the same problem with a Toshiba Satellite several times, and solved it doing either:

  1. If you have a dual boot with Windows, and you disable your wifi in Windows, in my case it also blocked the wifi for Ubuntu.

  2. Sometimes the laptop just "hangs" on the hard-blocking and the only way is to remove your laptop battery, which resets the BIOS (my laptop does not have a cmos battery).


Solution:2

First go into BIOS and reset it to defaults. If that does not help, then run in terminal

sudo tee /etc/modprobe.d/blacklist-hp.conf <<< "blacklist hp_wmi"  

and reboot.


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