Network problems. The cloud platform of Chengdu Smart Education has been updated, and most of the class information can't be seen, which is caused by abnormal network connection.

1, first turn on the computer to check the network.

2. Secondly, open the Chengdu Smart Education Cloud Platform to test whether the network connection is abnormal.

3. Finally, after waiting for the normal network connection, re-enter the Chengdu Smart Education Cloud Platform to check the class information.