Wifi is diabled , cant turn it on , on ubuntu 18.04

[_nero_]

#:~/rtlwifi_new$ sudo rfkill list
0: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: yes

wifi : 0a:00.0 Network controller: Ralink corp. RT3290 Wireless 802.11n 1T/1R PCIe

ubuntu says turn off airplane mode , this laptop's hardware button is not working , how do i turn it on

[Laurens_1996]

Dear _nero_,

Could you open a terminal window and run the following command:

This will open up a network window (see picture in which you can switch airplane mode on/off):

gnome-control-center network

Let me know if this worked. 

[Laurens_1996]

@_nero_

When you are in that networkwindow you can also run the following command in terminal to toggle wifi on/off and you will see the button airplane mode change from on to off and vice versa: 

nmcli nm wifi off

[_nero_]

Hi L.J. de Boer,
Its not working when i press turn on nothing is happing, airplane mode still presist.

[_nero_]

#:~$ nmcli nm wifi off
Error: argument 'nm' not understood. Try passing --help instead.

it seems like wifi is disabled from kernal it self , i have upgraded 16.04 to 18.04 ,on 16.04 its working perfectly , now i cant even turn it on.

[Laurens_1996]

Dear _nero_,

Could you try the following command in terminal?

nmcli radio all on

This will turn all communication on wifi, wan etc.

Thus, this would turn off airplane mode.

Let me know if it worked.

[_nero_]

Dear L.J. de Boer, 

no luck its not working , i have even reinstalled drivers, its not turning on.

[Laurens_1996]

Dear _nero_,

I  am sorry to hear the wifi is still disabled on your HP system.

However, I would suggest you to run the following code in terminal and let me know if it worked:

sudo modprobe -r hp_wmi
sudo rfkill unblock all
rfkill list all

This code disables the hp_wmi module, this module is known to cause conflicts with a linux distro. 

[_nero_]

Hi L.J. de Boer ,

still not working 

#:~$ sudo modprobe -r hp_wmi
#:~$ sudo rfkill unblock all
#:~$ rfkill list all
0: phy0: Wireless LAN
Soft blocked: no
Hard blocked: yes

[Laurens_1996]

Dear _nero_,

I am sorry that your wifi is not working yet.

(Check using iwconfig whether your interface is wlan0 before using these commands)

However, I would like you to try these terminal commands:

sudo systemctl restart network-manager.service
sudo ifconfig wlan0 up
sudo rfkill unblock all

This will restart the network system, restarts your wifi card and unblocks very interface.

Let me know if it worked.