Why can't i use play store when connected to wifi?

[Android Central Question]

i am using samsung galaxy J7 Pro, using my mobile data, i can use playstore just like normal, but when i connect to any wifi, google playstore just stop working. i cant download anything. it's stuck in "Downloading........." but doesn't continue.
even my friend who has huawei android has the same problem. why is that?
i am using Samsung Galaxy J7 Pro android version 7.0, kernel version 3.18.14-12784722, know 2.8
hope to receive answer asap.
thanks a lot

 

[B. Diddy]

Welcome to Android Central! Are all of the different wi-fi networks you've tried in different places, or are they all part of the same overall network (like a school or workplace)?