Wifi not working on Realtek rtl8723be wifi adapter

This issue is an ongoing problem and the following is more like a temporary answer.

Step 1. Add repository for the latest driver (maintained by lwfinger on GitHub) and install it.

sudo add-apt-repository ppa:hanipouspilot/rtlwifi sudo apt-get update sudo apt-get install rtlwifi-new-dkms linux-firmware

If you cannot install the driver then, disable secure boot from BIOS ( some notebooks have had this issue).

Your wifi-adapter should be working now (though maybe having weak signal or disconnects after some time).

Step 2. Edit the configuration file for the new driver for specific antenna selection and power management,

--First make a backup.

sudo cp /etc/modprobe.d/rtl8723be.conf /etc/modprobe.d/rtl8723be.old.conf

then,

echo "options rtl8723be fwlps=0 ips=0 ant_sel=2" | sudo tee /etc/modprobe.d/rtl8723be.conf

Step 3. reboot

Your wifi-adapter should be working better now. It is suggested to test wireless connection under load for some time. User may test with ant_sel=1 or removing this parameter to ascertain best working condition. With every change reboot is needed.

More information: With future kernel update, no additional configuration is needed since linux-firmware is also installed.

Referring solutions : Another issue with rtl8723be

Driver development by lwfinger on GitHub: rtl8723be driver Follow this for future updates.