WebSocket in Node.js can encounter timeout issues due to various reasons, such as network latency, server unresponsiveness, or client disconnections. Here are steps you can take to address these issues:

1. Implement Ping/Pong Mechanism: Implement a ping-pong mechanism between your client and server. This will ensure that the connection remains active and prevent the idle timeout from occurring.

Example of ping pong on server side:

const WebSocket = require('ws');
const wss = new WebSocket.Server({ port: 8080 });

wss.on('connection', ws => {
  setInterval(() => {
    if (ws.isAlive === false) return ws.terminate();

    ws.isAlive = false;
    ws.ping(noop);
  }, 30000);

  ws.on('pong', () => {
    ws.isAlive = true;
  });

  function noop() {}
});

2. Set Timeouts: Set appropriate timeout values on both the client and server sides. For example, in Express you can do it like this:

app.use((req, res, next) => {
  res.setHeader('Server', 'Node.js');
  next();
});

app.get('/ws', (req, res) => {
  const socket = req.socket;
  
  // Set a timeout for the WebSocket connection
  socket.setTimeout(60000, () => { // 60 seconds timeout
    console.log('WebSocket timed out');
    socket.destroy();
  });

  res.writeHead(200, { 'Content-Type': 'text/plain' });
  res.end('WebSocket connection established successfully\n');
});

3. Implement Heartbeat: Implement a heartbeat mechanism to ensure that the WebSocket connection is healthy and responsive. You can use ws.ping() to send a ping message to the server, and handle the 'pong' event on the client side to indicate that the server has received the ping.

4. Monitoring & Logging: Implement logging of WebSocket events and errors, this will help in identifying possible issues and debugging. You can use libraries like winston for logging in Node.js.