vnc中The connection closed unexpectedly.

The "connection closed unexpectedly" error message in VNC usually means that the VNC client was unable to connect to the VNC server or the connection was lost for some reason. Here are a few things you can try to resolve the issue:

1. Make sure that the VNC server is running and is accessible from the network. You may need to check your firewall settings to ensure that the necessary ports are open.

2. Check the connection settings in your VNC client to ensure that they are correct. Make sure that you are using the correct IP address or hostname and port number to connect to the VNC server.

3. Try restarting the VNC server and/or the VNC client to see if that resolves the issue.

4. If you are using a VPN or a proxy server, try disconnecting from it and connecting directly to the network to see if that resolves the issue.

I hope this helps. Let me know if you have any other questions.