Check your WebSocket server configuration, ensure proper client-server handshake, and verify network accessibility.

Resolving issues related to WebSocket connections in your Node.js application is critical for real-time communication, so addressing these problems effectively is vital. Start by checking your WebSocket server configuration; ensure that the server is set up correctly to handle incoming connections and that you are using the appropriate library, such as ws or socket.io, to manage WebSocket communications. Ensure a proper client-server handshake is established; this involves confirming that the client is correctly initiating the WebSocket connection and that the server is responding appropriately. Monitor the console logs on both the client and server sides for any errors or warnings during the connection process, as these can provide valuable insights into what might be going wrong. Verify network accessibility between the client and server; firewalls or security groups can often block WebSocket connections, especially in production environments. Consider implementing retry logic on the client side to handle transient connection issues gracefully, and ensure that you have error handling in place to manage disconnections or errors that occur during communication. By systematically reviewing these areas, you can effectively troubleshoot and resolve WebSocket connection issues in your Node.js application.