1, the network may be poor, the connection to the APP Store is not smooth, connection timeout will be displayed can not connect to the APP Store, it is recommended that the user change the network.
2, the APP Store server downtime or some unexpected circumstances, access to the APP Store too many users, resulting in slow user connection will also occur. Check whether the network of the device is normal, for example, you can open a web page to try, and you can also switch between WiFi\/4G networks to see if you can access the APP Store.