1. In the online network of Huazhong Science and Technology School, Ruijie was disconnected due to various reasons such as using agents or unstable school network. The solution is: uninstall the Ruijie client first, then reinstall it, or ask other students if there is a similar situation. If the campus network is unstable, many students should have this situation, and so on.

2. Ruijie client is a software specially used to dial the university education network (campus network). The latest version can be compatible with Windows7 and XP systems, and its performance is higher and more stable. At present, most users who use campus network use Ruijie client.