How to resolve issues with establishing a websocket connection?

To solve the issue of WebSocket connection failure, you can try the following steps:

1. Check the WebSocket implementation on the server side: make sure that the server properly follows the WebSocket protocol. You can review the server logs or try testing the server’s WebSocket service with another client.
2. Check the network connection: Ensure that there is a normal network connection between the client and server, and that it is not being blocked by a firewall or proxy server. Try using a different network environment or disabling the firewall to troubleshoot any network issues.
3. Check the WebSocket URL to ensure that the client is using the correct one. The WebSocket URL should start with ws:// or wss://, followed by the server’s IP address or domain name and port number.
4. Check protocol version: Ensure that the client and server are using the same WebSocket protocol version. WebSocket protocol has multiple versions, such as RFC6455 and RFC7692. If the client and server are using different protocol versions, it will result in a connection failure.
5. Check for other potential issues: If the above steps do not resolve the problem, you can try checking for other potential issues, such as high server load, errors in client or server-side code, and so on.

If the above steps still do not solve the problem, you can check specific error messages or logs to better pinpoint the issue.