Why won't some of my apps connect to WiFi networks except at home?

[Android Central Question]

When I'm using my home WiFi network, all the apps on my Samsung A505W connect to the internet, but when I'm using WiFi at a pub or café, only the various Google & Facebook apps connect to the internet. (E.g. Google search bar, & maps, Youtube, Gmail, Netflx, Facebook & Messenger are all connecting to the internet when I'm away from home but Twitter, non-Google websites, Duolingo, Lyft, etc. don't.) I've tried a few solutions (including restarting my phone) but nothing's worked so far. How do I fix this?

 

[mustang7757]

Have you tried reset network in settings?

I'll leave a link to register so you can communicate here, as a guest account u cant .
https://forums.androidcentral.com/showthread.php?t=409154

 

[belodion]

23h later.

We obviously cannot help you properly if you don't respond.

 

[Mike Dee]

Could be some apps might not connect on an unsecured network.

 

[B. Diddy]

Welcome to Android Central! Do you use a VPN app? If so, turn it off. VPNs can sometimes interfere with the proper function of some apps.