⚠️ 1 verified solutions available for Error 13893 — Last updated 2026-03-13
Error 13893 📋

Fix ERROR_IPSEC_IKE_PROCESS_ERR_NATOA — Windows Error Code 13893

Error 13893 (ERROR_IPSEC_IKE_PROCESS_ERR_NATOA) is a Windows Internet & WinHTTP error that occurs when error processing natoa payload.. This guide provides step-by-step solutions to resolve this issue.

🏷️ Code: 13893 📛 ERROR_IPSEC_IKE_PROCESS_ERR_NATOA 📅 Updated: 2026-03-13 ⏱️ 1 Solutions

🎮 Common Scenario: Are you experiencing Error 13893 while launching or installing Elden Ring? The solutions below directly address the system interactions specific to this application.

⚡ Quick Fix

Reset Internet Settings: Open Command Prompt as Administrator

👇 See all 1 solutions below

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Download our advanced, custom-built Smart Diagnostic Script (.bat). It safely creates a System Restore Point, applies targeted fixes based on advanced diagnostics for Error 13893, and generates a detailed HTML repair report.

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📑 Table of Contents
What is Error 13893? Common Causes Step-by-Step Solutions Prevention Tips Related Errors

💡 What is Error 13893?

Windows System Error Code 13893, known as ERROR_IPSEC_IKE_PROCESS_ERR_NATOA, is a Internet & WinHTTP error that occurs during WinHTTP, WinInet, and internet protocols. The error indicates that: Error processing NatOA payload. When this error is encountered, the Windows operating system was unable to complete the requested operation within the internet services subsystem. The error code 13893 is returned by the GetLastError() function and provides developers with a specific identifier to diagnose the root cause of the failure. The symbolic name ERROR_IPSEC_IKE_PROCESS_ERR_NATOA maps directly to this numeric code and is commonly referenced in Microsoft documentation, developer forums, and system logs. Understanding this error and its context within WinHTTP, WinInet, and internet protocols is essential for effective troubleshooting.

⚠️ Common Causes

  • Proxy misconfigured
  • SSL/TLS handshake failure
  • Client certificate expired
  • WinHTTP response timeout
📚 Comprehensive Guide

Fixing Permission Denied (0x80070005) and Access Violation Errors

An encyclopedia on Windows NT File System (NTFS) permissions, taking ownership via command line, and surviving 0x80070005 Access Denied errors.

Read the full guide →

✅ Step-by-Step Solutions

1 Reset Internet Settings
  1. Open Command Prompt as Administrator
  2. Run: netsh winhttp reset proxy
  3. Open Internet Options → Advanced → Reset
  4. Restart your browser and applications

🎬 Video Tutorials

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How To Fix Internet Connection Error Windows
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💻 Diagnostic Command

Run this PowerShell command to find related events in your system log:

Get-EventLog -LogName System -Newest 20 | Where-Object {$_.Message -like "*13893*" -or $_.Message -like "*ERROR_IPSEC_IKE_PROCESS_ERR_NATOA*"} | Format-List

💡 Open PowerShell as Administrator, paste the command above, and press Enter.

🛡️ Prevention Tips

  • Use centralized proxy management
  • Keep root certificates updated
  • Disable legacy SSL 3.0 protocol
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Last updated: 2026-03-13
📖
Based on Official Microsoft Documentation
Solutions Tested on Windows 10 & 11
Error codes sourced from Microsoft Win32 SDK. Updated 2026-03-13.
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