Knowledge

WSA_QOS_ESHAPERATEOBJ - 11030 (0x2B16)

An invalid shaping rate object was found in the QOS provider-specific buffer.

Updated: Feb 21, 2026

Technical Background

The WSA_QOS_ESHAPERATEOBJ error code is encountered when a Windows Socket Quality of Service (QoS) provider-specific buffer contains an invalid shaping rate object. This error typically indicates that the application or system attempted to use a QoS shaping rate configuration that does not conform to expected standards.

Error Details

The WSA_QOS_ESHAPERATEOBJ error code is specific to the Windows Sockets API and is related to Quality of Service (QoS) management. It suggests that an operation involving QoS shaping rates failed due to a misconfiguration or invalid input in the provider-specific buffer.

Common Causes

  • Invalid Shaping Rate Object: The object passed into the QoS shaping rate function does not conform to the expected format or structure.
  • Unsupported Operation: The operation attempted is not supported by the current configuration or state of the system.
  • Incorrect Usage Context: The context in which the QoS shaping rate was invoked is incorrect, such as attempting an operation that requires a different type of object.

Real-World Context

In network programming, Quality of Service (QoS) is used to ensure that certain types of traffic are prioritized over others. Shaping rates can be applied to control the flow of data packets and ensure smooth transmission. When these shaping rate objects are improperly configured or do not match the expected format, this error will occur.

Is This Error Critical?

The criticality of this error depends on the specific application and its requirements. If QoS is a crucial part of the network communication, then this error could be significant as it may prevent certain types of data from being transmitted correctly or at all.

How to Diagnose

To diagnose WSA_QOS_ESHAPERATEOBJ, follow these steps:

  1. Review Operation Context: Ensure that the operation is being performed in an appropriate context, such as during a valid network session.
  2. Validate Parameters: Check the parameters passed into the QoS shaping rate function to ensure they are correctly formatted and contain valid data.
  3. Confirm Object Types: Verify that the objects used for shaping rates match the expected types required by the system or application.
  4. Verify Input Data: Ensure that all input data, including shaping rate configurations, is correct and complete.
  5. Check Limits or Constraints: Confirm that the operation does not exceed any system-imposed limits or constraints related to QoS settings.

How to Resolve

To resolve WSA_QOS_ESHAPERATEOBJ, consider these steps:

  1. Correct Parameter Usage: Ensure that all parameters used in shaping rate configurations are correctly formatted and valid.
  2. Adjust Operation Context: If the operation context is incorrect, adjust it to match the requirements of the QoS system or application.
  3. Restore Data: If data corruption is suspected, restore the correct configuration for the shaping rate objects.
  4. Retry Operation with Valid Inputs: Attempt the operation again using valid and correctly formatted inputs.

Developer Notes

Developers should ensure that all QoS-related operations are performed in a context where the required parameters and object types are correctly specified. Regular validation of input data can help prevent such errors from occurring.

Related Errors

  • WSA_QOS_ESHAPERATEOBJ is related to other QoS-specific errors, such as WSA_QOS_BADPARAMETER, which may indicate issues with the parameters passed into a QoS function.

FAQ

What does WSA_QOS_ESHAPERATEOBJ mean?

This error indicates that an invalid shaping rate object was found in the QoS provider-specific buffer during an operation.

How can I prevent this error?

Ensure all QoS-related parameters and objects are correctly formatted and valid before performing operations.

Can this error occur due to hardware issues?

No, this is a software-level error related to the configuration of QoS settings. Hardware issues would typically manifest differently.

Summary

The WSA_QOS_ESHAPERATEOBJ error code indicates that an invalid shaping rate object was found in the QoS provider-specific buffer during an operation. This can be caused by incorrect parameter usage, unsupported operations, or misconfigured objects. Diagnosing and resolving this issue involves validating parameters, confirming object types, and ensuring correct input data.