Google Play Store not working on my wifi but works on other people's wifi

[AC Question]

HELP! I'm going nuts about this problem, google play store works on my friend's wifi but it doesn't on my wifi. I so want to fix this since I can't be asked to go to my friend's house everytime I want to install something on my phone, and I'm tired installing apps via apk, btw my wifi has the problem, not the phone so the factory reset, delete cache,etc doesn't work.