Fix: Error code: 0x204 Microsoft Remote Desktop - Unable to connect the remote PC.

Reasons for 0x204 RDP Error

You would get error 0x204 when you are trying to connect to a remote PC or a Server like Amazon EC2, when,

• Firewall/Security Issue: Make sure that the remote server's firewall is not blocking (TCP port 3389) connection.
• Network Connectivity Issue: It could be that the remote server is experiencing problems or is offline.
• Remote Desktop protocol version mismatch: You may also get 0x204 error when there is a version mismatch causing a compatibility issue between the remote desktop and the client.
• Server is booting up: It could be so that the remote server restarted or is booting up.

Fix/Troubleshooting steps

• Make sure the Remote Desktop software is up-to-date.
• Make sure that the client and remote computers are using the same version of the Remote Desktop Protocol. Check the version in the Remote Desktop client settings or the Remote Desktop session host configuration.
• Make sure that Remote Desktop is enabled both at client and server and that the computer is set to allow remote connections.
• Make sure that the firewall is not blocking connection to Remote Desktop.
• Make sure that Remote Desktop Server is up and running and not shut down.
• Make sure that there is stable internet connectivity at both the remote server and the client end, try a different network, and see if it resolves the issue.

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