1. For the connectivity problem of the local network, you can test the connectivity of the network through the local Ping command to determine whether it is a local network problem or a cloud server-side problem. 2. The remote desktop configuration of the cloud server is not turned on. You can open the control panel in the server and enter the "System and Security" option; Click Allow Remote Access and select Allow Connection to This Computer. Try to start over. 3. The remote access port of the server is not open. In the cloud server, click to open the Windows PowerShell window, and check whether the port number of Remote Desktop Service 3389 is open. You can use the command netstat -ant | findstr 3389 to open the port.