wifi rtl8723be – Ubuntu (on HP Stream 11, etc..)

source: http://askubuntu.com/questions/590414/wifi-problems-with-rtl8723be-in-ubuntu-14-04#593015

• install required packages

  
  1
  sudo apt-get install build-essential git
  
  

• git clone new realtek wifi modules

  
  1
  git clone https://github.com/lwfinger/rtlwifi_new/
  
  

• enter the directory

  
  1
  cd rtlwifi_new
  
  

• build it

  
  1
  make
  
  

• install

  
  1
  sudo make install
  
  

Now you can reboot or unload/load modules

• unload modules

  
  1
  sudo modprobe -r rtl8723be
  
  

• load new module

  
  1
  sudo modprobe rtl8723be
  
  

• if it still doesn’t work, try the solution from this post

  
  1
  echo "options rtl8723be fwlps=0" | sudo tee /etc/modprobe.d/rtl8723be.conf
  
  

Note: After each kernel update, you need to rebuild the modules. That is,

After every kernel update:

1
cd rtlwifi_new

Clean previous builds

1
make clean

Update git repository

1
git pull

Compile

1
make clean && make

Install

1
sudo make install

reboot or unload/load modules

###################################

My friend’s HP laptop wouldn’t display the available Wi-Fi networks.

So I followed the steps from Miodrag Prelec’s answer till

Then, I did

1
sudo modprobe -r rtl8723be

Then either of:

1
2
sudo modprobe rtl8723be ant_sel=1

sudo modprobe rtl8723be ant_sel=2

(whichever works)

After doing this it would list the Wi-Fi signals in the menu.

So I added these lines to

(above

) so that it would run each time my laptop boots up.

1
2
3
sleep 10

sudo modprobe -r rtl8723be

sudo modprobe rtl8723be ant_sel=1

Note: change

to

if required.