RPC_S_UNKNOWN_MGR_TYPE - 1716 (0x6B4)
The manager type is unknown.
Updated: Feb 21, 2026
Technical Meaning
The error code RPC_S_UNKNOWN_MGR_TYPE (1716, 0x6B4) indicates that the system encountered an unknown manager type during a Remote Procedure Call (RPC) operation. This typically suggests a misconfiguration or an issue with the RPC service.
Error Details
This error is returned when the RPC runtime encounters a situation where it cannot identify the expected manager type, which could be due to various reasons such as incorrect configuration, missing components, or corrupted data.
Usage Context
The RPC_S_UNKNOWN_MGR_TYPE error can occur in scenarios involving RPC-based services and applications. It is commonly observed when there are issues with the RPC runtime environment or when certain manager types are not properly registered or recognized by the system.
Developer Interpretation
Developers should interpret this error as an indication that a specific manager type required for an RPC operation is unknown to the system. This could be due to missing or incorrectly configured components, or it might indicate a problem with the service itself. Developers are advised to review the configuration and ensure all necessary components are correctly installed and registered.
Related Errors
RPC_S_INVALID_BINDING(1720, 0x6B8): Indicates an invalid binding for the RPC operation.RPC_S_UNKNOWN_IF(1734, 0x6D2): Suggests that the interface identifier is unknown.
FAQ
Q: What does the error code RPC_S_UNKNOWN_MGR_TYPE mean?
A: It indicates that an unknown manager type was encountered during an RPC operation. This typically suggests a misconfiguration or missing components in the RPC runtime environment.
Q: How can I resolve this issue?
A: Review the configuration of your RPC services and ensure all necessary components are correctly installed and registered. Check for any missing or incorrectly configured manager types.
Summary
The RPC_S_UNKNOWN_MGR_TYPE error code (1716, 0x6B4) is a generic indication that an unknown manager type was encountered during an RPC operation. Developers should interpret this as a sign of misconfiguration and take steps to ensure all necessary components are correctly installed and registered.