ERROR_RDP_PROTOCOL_ERROR - 7065 (0x1B99)
The RDP protocol component %2 detected an error in the protocol stream and has disconnected the client.
Updated: Feb 21, 2026
Technical Background
The ERROR_RDP_PROTOCOL_ERROR is a specific error code that indicates an issue within the Remote Desktop Protocol (RDP) component. This error suggests that the RDP protocol encountered an unexpected condition or invalid data in the protocol stream, leading to the disconnection of the client session.
Error Details
- Error Name: ERROR_RDP_PROTOCOL_ERROR
- Numeric Code: 7065
- Hex Code: 0x1B99
- Short Description: The RDP protocol component detected an error in the protocol stream and disconnected the client.
Common Causes
The error is typically caused by one of the following scenarios:
- Invalid Protocol Data: The data received from the client did not conform to the expected format or structure, leading to a protocol violation.
- Protocol Corruption: The RDP stream may have been corrupted during transmission, causing the protocol component to detect an error and terminate the session.
Real-World Context
This error can occur in various scenarios where RDP sessions are established. It is commonly observed when there is a network issue, client software malfunction, or server-side configuration problem that disrupts the integrity of the RDP stream.
Is This Error Critical?
The criticality of this error depends on the context and the nature of the operation being performed. In most cases, it indicates a temporary disruption in service but does not necessarily compromise system security or stability.
How to Diagnose
To diagnose the issue, consider the following steps:
- Review Operation Context: Ensure that all RDP sessions are initiated under appropriate network conditions and with valid credentials.
- Validate Parameters: Check for any misconfigurations in client or server settings that might affect protocol compliance.
- Confirm Object Types: Verify that the objects being manipulated (e.g., files, directories) are correctly identified and handled by the RDP protocol.
How to Resolve
To resolve this issue, take the following actions:
- Correct Parameter Usage: Ensure all parameters used in RDP operations are valid and conform to the expected format.
- Adjust Operation Context: If network conditions are suspect, ensure that the client and server are on a stable and reliable connection.
- Restore Data: In cases of protocol corruption, restoring or retransmitting the affected data may resolve the issue.
Developer Notes
Developers should be aware that this error is indicative of a protocol violation. It is essential to ensure robust validation logic in RDP-related operations to prevent such errors from occurring.
Related Errors
- ERROR_RDP_PROTOCOL_DATA_CHECKSUM_MISMATCH: Indicates a mismatch between expected and received checksums, suggesting data corruption.
- ERROR_RDP_PROTOCOL_UNEXPECTED_PACKET: Occurs when an unexpected packet is received, disrupting the protocol stream.
FAQ
Q: What does ERROR_RDP_PROTOCOL_ERROR mean?
A: This error indicates that the RDP protocol detected an invalid condition in the protocol stream and disconnected the client session.
Q: How can I prevent this error from occurring?
A: Ensure network stability, validate all parameters used in RDP operations, and confirm object types are correctly identified to minimize the risk of encountering this error.
Summary
The ERROR_RDP_PROTOCOL_ERROR is a specific error code that highlights an issue within the RDP protocol. It indicates a violation of expected protocol behavior, leading to client disconnection. By understanding its causes and implementing appropriate diagnostic and resolution steps, developers can mitigate the occurrence of this error in their applications.