If you can't connect to WhatsApp, this is usually caused by a problem with your Internet connection or your phone's settings.
Please try these steps to fix your connection:
- Restart your phone, or turn it off and on.
- Update WhatsApp to the latest version available on Google Play.
- Open your phone's Settings app > More > and turn Airplane mode on and off.
- Open your phone's Settings app > Data usage > and make sure that Cellular data is turned on.
- Open your phone's Settings app > Apps > WhatsApp > Data usage and make sure background data is not restricted.
- Open your phone's Settings app > Wi-Fi and turn it off and back on.
- Try connecting to different Wi-Fi hotspots.
- Make sure Wi-Fi stays on during sleep mode.
- Reboot your Wi-Fi Router.
- Contact your mobile provider and make sure your APN settings are configured correctly.
- Upgrade your Android OS to the latest version available for your device.
If you are able to use WhatsApp on Wi-Fi but not on data connection, double check your APN configuration with your mobile provider. You must be able to send and receive non-web traffic in order to use WhatsApp.
Learn how to troubleshoot connection issues on: iPhone | Windows Phone | Nokia S40 | BlackBerry | Nokia S60 | BlackBerry 10
WhatsApp Support Team