I can't enable the Wifi (nothing happens when press enable button) and in Wifi settings it says:
"No Wi-Fi Adapter Found"
I have tried several things from other questions/answers here but nothing worked. Here some information if this is helpful for the answer:
Device: Lenovo Miix 2 11
sudo lspci:
Network controller: Qualcomm Atheros AR9462 Wireless Network Adapter (rev 01) sudo lshw -C network:
*-network DISABLED description: Wireless interface product: AR9462 Wireless Network Adapter vendor: Qualcomm Atheros physical id: 0 bus info: pci@0000:02:00.0 logical name: wlp2s0 version: 01 serial: 48:d2:24:8a:ea:e6 width: 64 bits clock: 33MHz capabilities: pm msi pciexpress bus_master cap_list rom ethernet physical wireless configuration: broadcast=yes driver=ath9k driverversion=4.18.0-16-generic firmware=N/A latency=0 link=no multicast=yes wireless=IEEE 802.11 resources: irq:18 memory:f0400000-f047ffff memory:f0480000-f048ffff sudo lsmod | grep ath:
ath3k 20480 0 bluetooth 548864 12 btrtl,btintel,btbcm,bnep,ath3k,btusb ath9k 151552 0 ath9k_common 36864 1 ath9k ath9k_hw 475136 2 ath9k_common,ath9k ath 36864 3 ath9k_common,ath9k,ath9k_hw mac80211 794624 1 ath9k cfg80211 663552 5 wl,ath9k_common,ath9k,ath,mac80211 In system settings it shows the Wifi-Adapter Name:
Qualcomm Atheros AR9462 Edit:
lspci -knn | grep Net -A3; rfkill list:
02:00.0 Network controller [0280]: Qualcomm Atheros AR9462 Wireless Network Adapter [168c:0034] (rev 01) Subsystem: Lenovo AR9462 Wireless Network Adapter [17aa:3214] Kernel driver in use: ath9k Kernel modules: ath9k, wl 0: phy0: Wireless LAN Soft blocked: no Hard blocked: no 1: ideapad_wlan: Wireless LAN Soft blocked: no Hard blocked: yes 2: ideapad_bluetooth: Bluetooth Soft blocked: yes Hard blocked: yes 1 Answer
Your wireless adapter is blocked by rfkill.
You can fix it by running
sudo tee /etc/modprobe.d/blacklist-ideapad.conf <<< "blacklist ideapad_laptop" Reboot to apply.
You can always revert this blacklist by
sudo rm /etc/modprobe.d/blacklist-ideapad.conf 
