How to resolve Hp – Ubuntu 16 and Linux mint weak WIFI signal problem

From Ubuntu 16 or Mint equivalent version many HP laptop as poor wifi range, we can resolve this issue with the following trick

First install Realtek wifi driver in Ubuntu, use the below command for the same

sudo apt-get install linux-headers-generic build-essential git
git clone https://github.com/lwfinger/rtlwifi_new.git
cd rtlwifi_new
make
sudo make install
sudo modprobe rtl8723be

Disable WiFi power saving mode by below command

sudo vi /etc/modprobe.d/rtl8723be.conf

and type the below parameter into above file

options rtl8723be fwlps=0

Now test WiFi on which slot it is working well by below commands

sudo modprobe -r rtl8723be
sudo modprobe rtl8723be ant_sel=1
iwlist scan | egrep -i ‘ssid|quality’

or for slot 2

sudo modprobe -r rtl8723be
sudo modprobe rtl8723be ant_sel=2
iwlist scan | egrep -i ‘ssid|quality’

If it is working on slot one, run below command,

echo “options rtl8723be ant_sel=1” | sudo tee -a /etc/modprobe.d/rtl8723be.conf

and If ant_sel=2 was better, then

echo “options rtl8723be ant_sel=2” | sudo tee -a /etc/modprobe.d/rtl8723be.conf

At the last reboot the system

sudo reboot.

DONE!