The platform has two login ports, one is /portal/index_cs.jsp and the other is /sso/, which may be different between junior high school and senior high school.

This platform is based on Java and your environment may not support it (if it is not installed). You can try to install Java.

If you use an intranet, your network environment may prevent the connection. Try surfing the Internet somewhere else.

It may be that there is something wrong with the website itself, and it needs to wait for the debugging of the platform department of Changsha Education Bureau. Try again later.