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WiFi Adaptor Not Found on my IdeaPad Laptop Ubuntu!!

I recently updated my Ubuntu version to the latest one "Ubuntu 19.10". After this, my wifi adopter not working. Ubuntu says WiFi is switched on but it can't able to find any WiFi connections. No problem with WiFi devices and it works so good in Windows.

Found some solution from Googling, but no good.!

I used the rfkill command,

$ lspci -knn | grep Net -A3; rfkill list

The output of the command is,

[email protected]:~$ lspci -knn | grep Net -A3; rfkill list
02:00.0 Network controller [0280]: Intel Corporation Wireless 8265 / 8275 [8086:24fd] (rev 78)
	Subsystem: Intel Corporation Dual Band Wireless-AC 8265 [8086:0010]
	Kernel driver in use: iwlwifi
	Kernel modules: iwlwifi
1: phy0: Wireless LAN
	Soft blocked: no
	Hard blocked: no
2: hci0: Bluetooth
	Soft blocked: no
	Hard blocked: no
[email protected]:~$ 

And I used the command lshw -C network, it returns:

*-network DISABLED
description: Wireless interface
product:Intel Corporation Dual Band Wireless-AC 8265 [8086:0010]
vendor: Intel Corporation
physical id: 14.3
bus info: [email protected]:00:14.3
logical name: wlp0s20f3
version: 10
serial: 0c:dd:24:2c:af:83
width: 64 bits
clock: 33MHz
capabilities: pm msi pciexpress msix bus_master cap_list ethernet physical wireless
configuration: broadcast=yes driver=iwlwifi driverversion=5.0.0-23-generic firmware=43.95eb4e97.0 latency=0 link=no multicast=yes wireless=IEEE 802.11
resources: irq:16 memory:b4518000-b451bfff

How to fix this issue?

From the above output, It seems that your WiFi connection has been blocked!

New Ideapad laptops don't have a hardware wireless switch, and the ideapad_laptop kernel module considers a switch to be off.

Run the following command:

$ sudo tee /etc/modprobe.d/blacklist-ideapad.conf <<< "blacklist ideapad_laptop"

The above command will disable the blocking module and enable the WiFi. Simply your laptop will detect WiFi connections.

For more information, refer here.