If your system doesn't have wget, install it : sudo apt install wgetĪfter that, the downloaded zip file is extracted with unzip. What the commands does is download the GitHub repository (extended branch) with wget. To simplify everything, run the following commands one by one : wget -d -c -O 'rtlwifi_new.zip' '' To simplify everything, run the following commands one by one : git clone -b extended -single-branch We're gonna use the driver available in this GitHub repository's extended branch. This is the RECOMMENDED METHOD because in future, when kernel is updated, the installed driver will be automatically compiled to make it work in newer kernel. Next, install the packages necessary for building : sudo apt-get install git build-essential dkms You should install the corresponding header of your kernel : sudo apt-get install linux-headers-`uname -r` Or to quickly know if you have the d723 WiFi hardware, do : lspci | grep d723 If you have the d723 device, you can see it at the bottom : You will see all the PCI devices of your system. Open a terminal and do the command lspci.
If method 1 doesn't work for you, try method 2 or method 3. UPDATE : Added a new method to make it work on Ubuntu 18.04 LTS Without having the internet, one can't do almost anything. This new WiFi hardware is being shipped in new PCs and laptops now. Apparently, it's a new hardware and is not in the Linux kernel. I've been doing a lot of Linux Mint installations lately and one very annoying thing that I found in 2 laptops was the non availability of WiFi driver.
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