1-Actualizamos los repositorios:

nano /etc/apt/sources.list

# Proposed updates
deb http://ftp.fr.debian.org/debian/ jessie-proposed-updates main contrib non-free
# Oficiales
deb http://ftp.fr.debian.org/debian/ jessie main contrib non-free
# deb-src http://ftp.fr.debian.org/debian/ jessie main contrib non-free
# Seguridad
deb http://security.debian.org/ jessie/updates main contrib non-free
# deb-src http://security.debian.org/ jessie/updates main contrib non-free
# jessie-updates, previously known as ‘volatile’
deb http://ftp.fr.debian.org/debian/ jessie-updates main contrib non-free
# deb-src http://ftp.fr.debian.org/debian/ jessie main contrib non-free
# Multimedia
deb http://deb-multimedia.org/ jessie main non-free
# deb-src http://deb-multimedia.org/ jessie main non-free
# Backports
deb http://ftp.fr.debian.org/debian jessie-backports main contrib non-free
# deb-src http://ftp.fr.debian.org/debian jessie-backports main contrib non-free
# Mozilla
deb http://mozilla.debian.net/ jessie-backports firefox-release
# deb-src http://mozilla.debian.net/ jessie-backports firefox-release
# Chrome
deb http://dl.google.com/linux/deb/ stable main


2-Actualizamos e instalamos nuevos paquetes junto a sus dependencias:


apt-get dist-upgrade
reboot

3-Instalamos paquetes necesarios:


apt-get install network-manager
apt-get install wireless-tools
apt-get install build-essential
apt-get install firmware-iwlwifi
apt-get install gksu leafpad
apt-get install build-essential linux-headers-$(uname -r)
apt-get install module-assistant
apt-get install git
apt-get install firmware-realtek 
m-a prepare

4-Configuramos el fichero rtl8723be.conf:


touch /etc/modprobe.d/rtl8723be.conf 
/etc/modprobe.d/rtl8723be.conf
– Eliminamos todo y agregamos la siguiente linea: «options rtl8723be fwlps=0″.

git clone https://github.com/lwfinger/rtlwifi_new.git
cd rtlwifi_new/
make
make install
reboot


5- Comprobar que funciona desde la terminal con los siguientes comandos:


lspci -nn | grep Network
iwconfig
iwlist wlan0 scanning


5.1– O comprobar directamente desde la interfaz gráfica:


















6–  Solución a conexión lenta:

 


echo "options rtl8723be ant_sel=2" > /etc/modprobe.d/rtl8723be.conf
iwconfig wlan0 rate auto