Wifi connected but no internet on linux (ubuntu)

Hi

This is how i resolved ,

Please try the below commands as executed one by one followed by a reboot (sudo reboot)

sudo apt-get install linux-firmware-nonfree
sudo apt-get remove --purge bcmwl-kernel-source
sudo rm /etc/modprobe.d/blacklist-bcm43.conf
sudo rm /etc/modprobe.d/broadcom-sta-common.conf
sudo rm /etc/modprobe.d/broadcom-sta-dkms.conf 
sudo sed -i "s/blacklist b43/#blacklist b43/g" $(egrep -lo 'blacklist b43' /etc/modprobe.d/*)
sudo sed -i "s/blacklist ssb/#blacklist ssb/g" $(egrep -lo 'blacklist ssb' /etc/modprobe.d/*)
sudo sed -i "s/blacklist bcma/#blacklist bcma/g" $(egrep -lo 'blacklist bcma' /etc/modprobe.d/*)

Thanks