⚠️ 2 verified solutions available for Error 13929 — Last updated 2026-03-14
Error 13929 📋

Fix ERROR_IPSEC_DOSP_MAX_ENTRIES — Windows Error Code 13929

Error 13929 (ERROR_IPSEC_DOSP_MAX_ENTRIES) is a Windows Internet & WinHTTP error that occurs when ipsec dos protection failed to create state because the maximum number of entries allowed by policy has been reached.. This guide provides step-by-step solutions to resolve this issue.

🏷️ Code: 13929 📛 ERROR_IPSEC_DOSP_MAX_ENTRIES 📅 Updated: 2026-03-14 ⏱️ 2 Solutions
⚡ Quick Fix

Reset Internet Settings: Open Command Prompt as Administrator

👇 See all 2 solutions below
🐞 Auto-Fix Script for Error 13929
⚠️ How to use: Open PowerShell as Administrator, paste the code above, and press Enter.
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📑 Table of Contents
What is Error 13929? Common Causes Step-by-Step Solutions Prevention Tips Related Errors

💡 What is Error 13929?

Windows System Error Code 13929, known as ERROR_IPSEC_DOSP_MAX_ENTRIES, is a Internet & WinHTTP error that occurs during WinHTTP, WinInet, and internet protocols. The error indicates that: IPsec DoS Protection failed to create state because the maximum number of entries allowed by policy has been reached. When this error is encountered, the Windows operating system was unable to complete the requested operation within the internet services subsystem. The error code 13929 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_DOSP_MAX_ENTRIES 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

  • System resource conflict: IPsec DoS Protection failed to create state because the maximum number of entries allowed by policy has been reached.
  • Proxy misconfigured
  • SSL/TLS handshake failure
  • Client certificate expired
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✅ 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
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Show Advanced Solutions (1 more)
2 Advanced Diagnostic for ERROR_IPSEC_DOSP_MAX_ENTRIES
  1. Open Windows Event Viewer (eventvwr.msc)
  2. Navigate to Windows Logs → System to find Event ID 13929
  3. Look for associated warnings that occurred immediately before the system crashed
  4. Right-click the entry and export the log file for further analysis

🎬 Video Tutorials

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How to fix Error 13929 (Ipsec Dosp Max Entries)
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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 "*13929*" -or $_.Message -like "*ERROR_IPSEC_DOSP_MAX_ENTRIES*"} | 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: 2026-03-14
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Based on Official Microsoft Documentation
Solutions Tested on Windows 10 & 11
Error codes sourced from Microsoft Win32 SDK. Updated 2026-03-14.
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