G920i cennected to wifi ok but not internet.

i have a singular issue.
samsung g920i version 5.1.1 conncet to wifi ok but dont have internete,Whit 3g work ok internet but only in wifi conncet but dont pass internet.

i fix the date and same.
uodated same version to 6.01 and same .
updated to trinidad and tobago(different Version) and same.

reseted and any thing possible. wifi always connect ok but dont pass the internet.