wireless network activation failed

[vishnudinesh2011]

I am not able to connect to my WiFi. Every time I try to connect a pop-up notification comes saying "Wireless activation failed". I have recently installed Ubuntu 18.04LTS.
My pastebin link is : http://paste.ubuntu.com/p/9DSwqrkyGw/

[jeremy31]

Do

sudo sed -i 's/3/2/' /etc/NetworkManager/conf.d/*
echo "options rtl8723be fwlps=N" | sudo tee /etc/modprobe.d/rtl8723be.conf

Reboot

Did you install the driver from https://github.com/lwfinger/rtlwifi_new?

[vishnudinesh2011]

yes i installed it from the github