How to stop this from popping? Simple lang po.
1. Settings, Wifi.
2. Long press mo po 'yung wifi kung saan kayo naka-connect.
3. Click modify setting, then advance options.
4. Click none and change it to manual.
5. Put any Proxy hostname: like free.facebook.com
Proxy port: 8080 or any. Then save.
That's it.