Hi,
Im currently own an Xperia Arc,
last few days i have problems with the internet using Digi
facebook works, whatsapps works but my play store and browser wasn't working at all

Im using the 3gb digi for so and so per month

then i recently changed my setting in Mobile network settings> Access Point Names to Digi Internet and my Data Roaming to National, since before that it was none.

is my setting correct?

sorry for asking a noobish question coz i have completely no idea in this area. :C help please