Script to install rtlwifi drivers for Ubuntu 18.04+

This Script need active internet connection to run. Please make sure you are connected to internet via ethernet cable before run the script

This is shell script to install the rtlwifi drivers for Ubuntu 18.04+ All the drivers are installed by this script is getting from rtlwifi-linux/rtlwifi_new . You can check the repo (rtlwifi-linux/rtlwifi_new ) if you want to know more about supported hardware.

Get started

1. Open Termilal from Application Menu or use shortcut Ctrl+Alt+T
2. Download the Script using following command in the terminal

   wget "https://raw.githubusercontent.com/ajithrn/rtlwifi_install_script/master/rtlwifi_install.sh"
   

3. Enable Permission to run the script by using following command in the terminal

   sudo chmod +x rtlwifi_install.sh
   

4. Run script by using following command in the terminal

   ./rtlwifi_install.sh
   

5. Follow the instructions on the terminal to continue and complete installation.

Troubleshoot low Wifi range.

If you facing issues with Wifi range, the driver might have using wrong antenna. To test this, please run the following commands. (set 1)

DEVICE=$(iw dev | grep Interface | cut -d " " -f2)
sudo iw dev $DEVICE scan | egrep "SSID|signal|\(on"

If the signal for the AP to which you wish to connect is -60 or less, then you have this problem. The fix is to supply the "ant_sel" option. Run the following commands. (set 2)

sudo su -
echo "options rtl8723de ant_sel=2" > /etc/modprobe.d/50-rtl8723de.conf
exit

If you have a different driver like rtl8723be, make the appropriate adjustments to the above command.

At this point, do a complete shutdown! The device may retain the old setting with a warm reboot. To be safe, do a power off. After the system come back up, rin the set 1 commands again. If The signals are now a lot stronger, you are done. If not, repeat command set 2 with "ant_sel=1".