1. Reinstall the application: Try to reinstall the small flying arrow application, and then log in to your account to see if you can reconnect to the server.
2. Check account information: Make sure that the account information you entered (such as server address, port number, user name, password, etc.). ) is correct. If there are any changes or mistakes, correct them in time.
3. Check the network connection: Make sure your device is connected to a stable network. You can try to switch to another network or restart the network device.
4. Check the server status: If you use a self-built server, you can check the running status of the server to ensure that the server works normally and can be accessed.
5. Contact the service provider: If you use a server provided by a third party, you can contact the customer service or support team of the service provider to consult the server failure or maintenance.
If the above methods still can't solve the problem, I suggest you describe the specific situation in detail and contact Xiaofeiyan's technical support team or seek professional network technical support to get more accurate help.