The CN2 server keeping reconnecting can be caused by a variety of reasons. Before troubleshooting the issue, you can consider the following steps to diagnose and resolve the issue:

　　Check network connection:

　　Make sure your network connection is normal, including hardware devices such as network cables, routers, and modems. Make sure they don't have glitches or connection issues.

　　Check the CN2 server status:

　　Check the running status of the CN2 server. If the server is under maintenance or is down, it may cause connectivity issues. You can contact your server provider or data center for more information.

　　​Check firewall and security settings:

　　Firewall and security settings may cause connection issues. Make sure your firewall allows communication to the CN2 server and check if there are any security policies or rules that may cause the connection to drop.

　　​Check application settings:

　　If you use a specific application to connect to the CN2 server, make sure the application's configuration settings are correct. Ports, certificates, and other connection parameters may need to be checked.

　　Check network load:

　　If the network load on the CN2 server is high, it may cause connection issues. You can try connecting during off-peak hours to see if the problem persists.

　　View the log:

　　Check the system log, application log, or connectivity tool log for any error messages or warnings about connectivity issues.

　　Contact the server provider:

　　If the above steps cannot solve the problem, it is recommended to contact your CN2 server provider or data center support team to report the problem to them and ask for help.

　　Ultimately, depending on the specific nature of the problem, further diagnosis and resolution may be required. Connection issues can be caused by a variety of factors and require careful troubleshooting and analysis. Working with a server provider can help you resolve issues faster.