Knowledge

WSAECONNABORTED - 10053 (0x2745)

An established connection was aborted by the software in your host machine.

Updated: Feb 21, 2026

Technical Background

WSAECONNABORTED is a specific error code that indicates an established connection was terminated by the software in your host machine. This error typically occurs during socket operations, such as TCP or UDP communication.

Error Details

  • Error Name: WSAECONNABORTED
  • Numeric Code: 10053 (0x2745)
  • Short Description: An established connection was aborted by the software in your host machine.

This error is indicative of a specific operation that was unable to complete due to an internal abort condition. It can occur when the application or system decides to terminate an existing connection, often for reasons related to resource management or security policies.

Common Causes

  • Invalid Parameter Values: Incorrect parameters passed during socket operations can lead to this error.
  • Incorrect Object Type: Attempting to perform a file operation on a directory or vice versa might result in WSAECONNABORTED, though it is more common with network connections.
  • Exceeding Limits: Reaching system limits for concurrent connections or other resource constraints can trigger this error.
  • Unsupported Operations: Trying to use unsupported socket operations or protocols could lead to this issue.

Real-World Context

This error commonly occurs in network programming scenarios where a connection is unexpectedly terminated. It might be due to application-level decisions, such as closing a connection gracefully, or system-level actions like resource management policies.

Is This Error Critical?

The criticality of this error depends on the context and the specific operation being performed. In most cases, it indicates that the connection is no longer valid and should be re-established if necessary.

How to Diagnose

  1. Review Operation Context: Ensure that all operations are performed in a valid context.
  2. Validate Parameters: Check for any invalid or incorrect parameters passed during socket operations.
  3. Confirm Object Types: Verify the type of objects being operated on, ensuring they match expected types.
  4. Verify Input Data: Validate input data to ensure it is correct and complete.
  5. Check Limits or Constraints: Confirm that system limits are not exceeded.

How to Resolve

  1. Correct Parameter Usage: Ensure all parameters used in socket operations are valid and correctly formatted.
  2. Adjust Operation Context: If the operation context is incorrect, adjust it to match expected conditions.
  3. Restore Data: If data corruption or loss is suspected, restore from a backup if available.
  4. Retry Operation with Valid Inputs: Attempt to re-establish the connection using correct parameters.

Developer Notes

  • Always validate input parameters before performing socket operations.
  • Implement error handling mechanisms to gracefully manage connection failures.
  • Monitor system resources and ensure they are not being exhausted, which could lead to this error.

Related Errors

  • WSAECONNRESET: Connection reset by peer.
  • WSAETIMEDOUT: Operation timed out.

FAQ

Q: What does WSAECONNABORTED mean?

A: It indicates that an established connection was aborted by the software in your host machine.

Q: How can I prevent this error?

A: Validate parameters, ensure correct object types, and manage system resources to avoid exceeding limits.

Summary

WSAECONNABORTED is a specific error code indicating that an established connection was aborted by the software in your host machine. It is commonly encountered during network programming and can be diagnosed and resolved by validating parameters, confirming object types, and managing system resources.