Knowledge

DNS_ERROR_NBSTAT_INIT_FAILED - 9617 (0x2591)

NBTSTAT initialization call failed.

Updated: Feb 21, 2026

Introduction

This article provides a detailed technical explanation of the DNS_ERROR_NBSTAT_INIT_FAILED error code, including its meaning and implications for developers.

Technical Background

The DNS_ERROR_NBSTAT_INIT_FAILED error is related to network-related operations in Windows systems. Specifically, it indicates that an initialization call to the NetBIOS over TCP/IP (NBT) statistics utility (Nbtstat.exe) failed during a network operation.

Error Details

Numeric Code: 9617 (0x2591)

This error code is returned when there is a failure in initializing the NBTSTAT component, which is used for managing and displaying NetBIOS over TCP/IP statistics. The initialization call may fail due to various reasons such as incorrect parameters or system limitations.

Common Causes

  • Invalid Parameters: Incorrect or invalid arguments passed to the Nbtstat utility during its initialization process.
  • System Limits: Exceeding resource limits that are required for successful NBTSTAT operation, such as maximum number of open handles or network connections.
  • Corrupted Data: Corrupted system files or registry entries related to NetBIOS over TCP/IP services.

Real-World Context

This error can occur in various scenarios where the Nbtstat utility is invoked for operations like displaying statistics, changing configuration settings, or managing NetBIOS names. It typically affects network administrators and developers who rely on these utilities for troubleshooting and management tasks.

Is This Error Critical?

The criticality of this error depends on the specific operation being performed. If Nbtstat is used in a routine maintenance task, it may not be immediately critical. However, if it occurs during an essential network operation or service startup, it could indicate a more severe underlying issue that needs attention.

How to Diagnose

  1. Review Operation Context: Ensure the correct context and parameters are being passed to Nbtstat.
  2. Validate Parameters: Check for any invalid or incorrect arguments that might be causing the failure.
  3. Confirm Object Types: Verify that the object types involved in the operation (e.g., network interfaces, IP addresses) are correctly identified and supported by the system.
  4. Verify Input Data: Ensure all input data is valid and within acceptable ranges for the Nbtstat utility.
  5. Check Limits or Constraints: Confirm that no resource limits have been exceeded, such as maximum number of open handles or network connections.

How to Resolve

  1. Correct Parameter Usage: Ensure all parameters passed to Nbtstat are valid and correctly formatted.
  2. Adjust Operation Context: If the operation context is incorrect, adjust it to match the required environment for successful execution.
  3. Restore Data: If corrupted data is suspected, restore system files or registry entries related to NetBIOS over TCP/IP services.
  4. Retry Operation with Valid Inputs: Attempt to re-run the Nbtstat utility with valid inputs and parameters.

Developer Notes

Developers should be aware of potential issues when using Nbtstat in scripts or automated processes, as it may fail under certain conditions. Proper error handling and validation of input parameters are essential for robust network management solutions.

Related Errors

  • DNS_ERROR_NBTSTAT_NOT_FOUND: Indicates that the Nbtstat utility is not found on the system.
  • ERROR_INVALID_PARAMETER: Occurs when an invalid parameter is passed to a function or command.
  • ERROR_TOO_MANY_OPEN_FILES: Indicates that too many open files are currently in use by the system, preventing successful operation of Nbtstat.

FAQ

Q: What does DNS_ERROR_NBSTAT_INIT_FAILED mean?

A: It indicates that an initialization call to the NBTSTAT utility failed during a network operation.

Q: How can I troubleshoot this error?

A: Review the operation context, validate parameters, confirm object types, verify input data, and check resource limits. Retrying with valid inputs may resolve the issue.

Summary

The DNS_ERROR_NBSTAT_INIT_FAILED error code is a specific technical indicator that an initialization call to the NBTSTAT utility failed. Understanding its causes and implications can help in diagnosing and resolving network-related issues effectively.