EPT_S_CANT_CREATE - 1899 (0x76B)

The endpoint mapper database entry could not be created.

Updated: Feb 21, 2026

Introduction

The error code EPT_S_CANT_CREATE (1899, 0x76B) indicates a failure in the creation of an endpoint mapper database entry. This article provides detailed technical documentation for this specific error, including its meaning, common causes, and developer interpretation.

Technical Background

The Endpoint Mapper is a component within Windows that manages network connections and services. It maintains a database of endpoints, which are essentially mappings between service names and their corresponding IP addresses or other network-related information. The EPT_S_CANT_CREATE error occurs when the system fails to create an entry in this database.

Error Details

The specific failure is related to the inability to add a new entry to the endpoint mapper's database. This can occur during various operations, such as starting a service that requires network connectivity or attempting to establish a network connection through a service that relies on the Endpoint Mapper for configuration.

Common Causes

  • Invalid Parameters: The parameters passed to the operation may be incorrect or invalid, leading to the failure in creating the database entry. This could include issues with the service name, IP address, port number, or other relevant network information.
  • Exceeding Limits: There might be a limit on the number of entries that can be created within the endpoint mapper's database. If this limit is reached, further attempts to create new entries will fail.
  • Corrupted Data: The data being used to create the entry may be corrupted or in an inconsistent state, preventing successful creation.

Real-World Context

This error typically manifests when a service or application that relies on network connectivity encounters issues during initialization. For example, if a service attempts to start and requires configuration through the Endpoint Mapper but fails due to this error, it might not function correctly until the issue is resolved.

Is This Error Critical?

The criticality of this error depends on the specific context in which it occurs. If the service or application that relies on network connectivity cannot be started due to this error, it can impact the functionality and availability of those services. However, if the system continues to operate without these services, the impact may be minimal.

How to Diagnose

To diagnose the EPT_S_CANT_CREATE error, follow these steps:

  • Review Operation Context: Ensure that all parameters passed during the operation are correct and valid. Check the service name, IP address, port number, and any other relevant network information.
  • Validate Parameters: Verify that the parameters being used to create the database entry are within acceptable ranges and formats. Incorrect or invalid parameters can lead to this error.
  • Confirm Object Types: Ensure that the object types (such as service names) match the expected types for the operation. Mismatched types can result in failure.
  • Verify Input Data: Check if any of the input data, such as IP addresses or port numbers, are corrupted or inconsistent. Corrupted data can prevent successful creation of the database entry.

How to Resolve

To resolve the EPT_S_CANT_CREATE error, consider these practical steps:

  • Correct Parameter Usage: Ensure that all parameters used in the operation are correct and valid. Double-check service names, IP addresses, port numbers, and other relevant network information.
  • Adjust Operation Context: If there is a limit on the number of entries within the endpoint mapper's database, consider adjusting the context or configuration to allow for more entries. This might involve restarting services or making changes to the system settings that affect the Endpoint Mapper.
  • Restore Data: If data corruption is suspected, attempt to restore the corrupted data from backups or other reliable sources. Ensure that all data used in the operation is accurate and consistent.

Developer Notes

Developers should be aware of the potential for this error when working with services that rely on network connectivity through the Endpoint Mapper. Proper validation of parameters and input data can help prevent such errors. Additionally, understanding the limits and constraints within the system can aid in diagnosing and resolving issues more effectively.

Related Errors

  • EPT_S_CANT_UPDATE: Similar to EPT_S_CANT_CREATE, but related to updating existing entries rather than creating new ones.
  • EPT_S_CANT_DELETE: Indicates a failure in deleting an entry from the endpoint mapper's database, which might be relevant if there are issues with removing old or unnecessary entries.

FAQ

Q: What does the EPT_S_CANT_CREATE error mean?

A: The EPT_S_CANT_CREATE error indicates that the system failed to create a new entry in the endpoint mapper's database. This can occur due to invalid parameters, exceeding limits, or corrupted data.

Q: How can I prevent this error from occurring?

A: To prevent this error, ensure that all parameters used in operations involving the Endpoint Mapper are correct and valid. Verify input data for accuracy and consistency, and avoid exceeding any system-defined limits on database entries.

Q: Can this error affect the overall performance of my system?

A: The impact of this error depends on the specific context. If critical services that rely on network connectivity fail due to this error, it can affect the overall performance and availability of those services. However, if the system continues to operate without these affected services, the impact may be minimal.

Summary

The EPT_S_CANT_CREATE error (1899, 0x76B) is a specific technical issue related to the creation of an endpoint mapper database entry in Windows. Understanding its causes and implications can help developers diagnose and resolve issues more effectively when working with networked services that rely on this component.