[Q] problems after 4.4.2 update LG G2 topic

yesterday on 25th I updated my LG G2 to 4.4.2 in India. After update Whatsapp and Google Chrome browser does not work on Idea 3G network but at the same time Facebook opens on 3G network.
Also on wi-fi both chrome browser and whatsapp opens. so what could be the solution?