1, network problem. Network connection is unavailable due to poor network, please try again with a better network;

2. Arrears. Check whether your mobile phone is in arrears or whether your broadband is in arrears;

3, the mobile phone problem. If it is caused by the mobile phone problem, open the mobile phone, find GM, and choose to restore the mobile phone network;

4. Network permissions. Check whether other software is also unavailable, and check your own network permissions.

The "National Smart Education Platform for Primary and Secondary Schools" is an "Application Plan for the Construction of National Smart Education Platform for Primary and Secondary Schools" researched and formulated by the Ministry of Education on the basis of summing up the operating experience of the "National Network Cloud Platform for Primary and Secondary Schools", and the original cloud platform was revised and upgraded to "National Smart Education Platform for Primary and Secondary Schools", which was put into trial operation on March 1 2022.