Open a terminal and do the command lspci. You will see all the PCI devices of your system. If you have the d723 device, you can see it at the bottom
Prerequisite
You should install the corresponding header of your kernel :
sudo apt-get install linux-headers-`uname -r`
Next, install the packages necessary for building :
sudo apt-get install git build-essential dkms
To simplify everything, run the following commands one by one :
git clone -b extended --single-branch https://github.com/lwfinger/rtlwifi_new.git
sudo dkms add rtlwifi_newsudo dkms install rtlwifi-new/0.6
git clone -b extended --single-branch https://github.com/lwfinger/rtlwifi_new.git
sudo dkms add rtlwifi_newsudo dkms install rtlwifi-new/0.6
HP wifi issues Click here
Lenova Wifi issues Click here
Kernal Update Click here
