Flush DNS and Switch Servers: Open Command Prompt as Administrator
👇 See all 2 solutions belowWhat is Error 5929?
Windows System Error Code 5929, known as ERROR_DEPENDENCY_TREE_TOO_COMPLEX, is a DNS & WINS error that occurs during DNS resolution and WINS name resolution. The error indicates that: The dependencies for this resource are nested too deeply. When this error is encountered, the Windows operating system was unable to complete the requested operation within the DNS/WINS services subsystem. The error code 5929 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_DEPENDENCY_TREE_TOO_COMPLEX 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 DNS resolution and WINS name resolution is essential for effective troubleshooting.
Common Causes
- System resource conflict: The dependencies for this resource are nested too deeply.
- DNS server misconfigured
- Stale DNS cache entries
- Hostname cannot be resolved
Troubleshooting COM and DCOM Architectural Failures (Event ID 10016)
A comprehensive guide on Component Object Model (COM), Distributed COM (DCOM), and how to safely interpret and resolve Event ID 10016 errors.
Read the full guide →Step-by-Step Solutions
- Open Command Prompt as Administrator
- Run: ipconfig /flushdns
- Change DNS to Google (8.8.8.8) or Cloudflare (1.1.1.1)
- Run: ipconfig /registerdns
Video Tutorials
Diagnostic Command
Run this PowerShell command to find related events in your system log:
Get-EventLog -LogName System -Newest 20 | Where-Object {$_.Message -like "*5929*" -or $_.Message -like "*ERROR_DEPENDENCY_TREE_TOO_COMPLEX*"} | Format-List💡 Open PowerShell as Administrator, paste the command above, and press Enter.
Prevention Tips
- Use reliable DNS (8.8.8.8 or 1.1.1.1)
- Flush DNS cache periodically
- Monitor DNS resolution performance