No WiFi adapter found in Ubuntu 18.04 (Fixed)

(No Wi-Fi Adapter Found Ubuntu 18.04)

Hello friends its Subhendu here if you are facing this problem which is screening above then you are at right place.

It's may be a month ago when i was facing these problems because i installed ubuntu on my laptop side by windows 10. At 1st i though it's a installation failure due to windows 10 is also present. After 1hour i got the solution for this and now it's working fine. Nothing hard just need to hit some commands in terminal.

So let's start

Step-1:

Open your terminal for command execution.

how to->Left Click -> at last you will find (for more just look below screenshot)

(My Ubuntu Desktop Home)

Step-2:

Have to hit some command

sudo apt remove bcmwl-kernel-source && sudo apt install git dkms

then after execution

git clone -b extended https://github.com/lwfinger/rtlwifi_new.git

then after execution

sudo dkms add ./rtlwifi_new

 then after execution

sudo dkms install rtlwifi-new/0.6

Done
Just Reboot your system

If you notice weak signal Just Try Below Code after above done.

  sudo modprobe -r rtl8723de && sleep 5 && sudo modprobe rtl8723de ant_sel=1

 And see if it is better, if not do this

sudo modprobe -r rtl8723de && sleep 5 && sudo modprobe rtl8723de ant_sel=2

Done
Just Reboot your system

I think you got your answer and your WiFi is working if its not Comment here i will help you on this. and Subscribe for Newsletter to get update with me and my posts.

Thank you