1) Please ensure your device internet has minimum of 1 Mbps speed
2) Check your network connectivity by opening any website on your device browser (safari in iOS, chrome in Android).
3) Pause all activities which consume lot of bandwidth (e.g. downloading content, video-chatting)
4) Restart the device & check again.
If the above steps do not solve the issue, please chat with us by clicking https://www.jio.com/en-in/contact-us.