⚠️ 1 verified solutions available for Error 8349 — Last updated 2026-03-13
Error 8349 📋

Fix ERROR_DS_NAME_VALUE_TOO_LONG — Windows Error Code 8349

Error 8349 (ERROR_DS_NAME_VALUE_TOO_LONG) is a Windows Active Directory error that occurs when the name value is too long.. This guide provides step-by-step solutions to resolve this issue.

🏷️ Code: 8349 📛 ERROR_DS_NAME_VALUE_TOO_LONG 📅 Updated: 2026-03-13 ⏱️ 1 Solutions

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⚡ Quick Fix

Rejoin the Domain: Open System Properties → Change → set to Workgroup → OK → Restart

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📑 Table of Contents
What is Error 8349? Common Causes Step-by-Step Solutions Prevention Tips Related Errors

💡 What is Error 8349?

Windows System Error Code 8349, known as ERROR_DS_NAME_VALUE_TOO_LONG, is a Active Directory error that occurs during Active Directory and directory services. The error indicates that: The name value is too long. When this error is encountered, the Windows operating system was unable to complete the requested operation within the directory services subsystem. The error code 8349 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_DS_NAME_VALUE_TOO_LONG 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 Active Directory and directory services is essential for effective troubleshooting.

⚠️ Common Causes

  • Computer lost domain trust
  • Time sync beyond Kerberos limit
  • DNS preventing DC discovery
  • Account locked or disabled
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✅ Step-by-Step Solutions

1 Rejoin the Domain
  1. Open System Properties → Change → set to Workgroup → OK → Restart
  2. Then change back to Domain → enter domain name → OK → Restart
  3. This re-establishes the trust relationship

🎬 Video Tutorials

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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 "*8349*" -or $_.Message -like "*ERROR_DS_NAME_VALUE_TOO_LONG*"} | Format-List

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

🛡️ Prevention Tips

  • Ensure reliable NTP sources
  • Monitor DC health with dcdiag
  • Use redundant DNS servers
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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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