Why does the Facebook app and facebook messenger tell me to

[Android Central Question]

I am using wifi only and every other app and webpage will open except the Facebook app facebook messenger and facebook on browser. Every time I try to go on anything facebook it tells me to check my internet connection

 

[SpookDroid]

Does facebook work on your other devices connected to that WiFi? Do you have any VPN or Proxy apps in your phone that might be blocking traffic to Facebook?