This code will build on any kernel 4.2 and newer as long as the distro has not modified any of the kernel APIs. IF YOU RUN UBUNTU, YOU CAN BE ASSURED THAT THE APIs HAVE CHANGED. NO, I WILL NOT MODIFY THE SOURCE FOR YOU. YOU ARE ON YOUR OWN!!!!!

Note: If your kernel is 4.17 or newer, AND your card is not an RTL8723DE, then you should NOT be using the external driver. The built-in one is the same.

It includes the following drivers:

rtl8192ce, rtl8192cu, rtl8192se, rtl8192de, rtl8188ee, rtl8192ee, rtl8723ae, rtl8723be, rtl8821ae, rtl8822be and rtl8723de.

You can find YOUR WIRELESS DRIVER CODE using lspci | grep Wireless or lspci | grep Network. Afterwards, execute the following lines of codes in your shell:

If you are running Ubuntu, then

sudo apt-get install linux-headers-generic build-essential git

Please note the first paragraph above.

For all distros:

git clone https://github.com/lwfinger/rtlwifi_new.git
cd rtlwifi_new

Note : if your kernal version is 5.2.0 / Kernel modules: rtwpci and driver is RTL8822BE then checkout rtw88 branch else skip this step

git checkout origin/rtw88 -b rtw88

make
sudo make install
sudo modprobe -r <<YOUR WIRELESS DRIVER CODE>>
sudo modprobe <<YOUR WIRELESS DRIVER CODE>>

If it turns out that your system needs one of the configuration options, then do the following:

sudo vim /etc/modprobe.d/<<YOUR WIRELESS DRIVER CODE>>.conf

There, enter the line below:

`options <<YOUR WIRELESS DRIVER CODE>> <<driver_option_name>>=<value>`

• The ONLY option you are likely to need is "ant_sel". The penny-pinchers at some laptop vendors, mostly HP, decided to save a few cents to install only one antenna. That would not have been a problem as the driver contains the logic necessary to handle this case; however, the idiots failed to correrctly encode that information in the devices ROM. Accordingly, the driver follow the ROM setting and uses the WRONG antenna. Effectively, the device has NO usable antennas. To test if this is the case on your system, 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 rtl8723be ant_sel=2" > /etc/modprobe.d/50-rtl8723be.conf
exit

• If you have an RTL8723DE, 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, rerun the set 1 comamands again. If The signals are now a lot stronger, you are done. If not, repeat command set 2 with ant_sel=1. If that does not help, I have no idea what is wrong.