Mensaje Operation not possible due to RF-kill

$ sudo ifconfig wlan0 up
SIOCSIFFLAGS: Operation not possible due to RF-kill

No manual entry for Rf-kill
$ rfkill list all
0: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: yes
Hard blocked: no

$sudo rfkill unblock wifi
$ rfkill list all
0: hci0: Bluetooth
Soft blocked: yes
Hard blocked: no
1: phy0: Wireless LAN
Soft blocked: no
Hard blocked: no
sudo ifconfig wlan0 up