What causes Error 5076?

DNS server misconfigured. Stale DNS cache entries. Hostname cannot be resolved. DNS server unreachable

How do I fix Error 5076 (ERROR_CLUSTER_MAXNUM_OF_RESOURCES_EXCEEDED)?

Flush DNS and Switch Servers: 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

Fix ERROR_CLUSTER_MAXNUM_OF_RESOURCES_EXCEEDED

Q: What is Windows Error 5076 (ERROR_CLUSTER_MAXNUM_OF_RESOURCES_EXCEEDED)?

Error 5076 (ERROR_CLUSTER_MAXNUM_OF_RESOURCES_EXCEEDED) is a Windows DNS & WINS error that occurs when this resource cannot be created because the cluster has reached the limit on the number of resources it can monitor.. This guide provides step-by-step solutions to resolve this issue.

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⚡ Quick Fix

Flush DNS and Switch Servers: Open Command Prompt as Administrator

👇 See all 1 solutions below

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📑 Table of Contents

What is Error 5076? Common Causes Step-by-Step Solutions Prevention Tips Related Errors

💡 What is Error 5076?

Windows System Error Code 5076, known as ERROR_CLUSTER_MAXNUM_OF_RESOURCES_EXCEEDED, is a DNS & WINS error that occurs during DNS resolution and WINS name resolution. The error indicates that: This resource cannot be created because the cluster has reached the limit on the number of resources it can monitor. 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 5076 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_CLUSTER_MAXNUM_OF_RESOURCES_EXCEEDED 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

DNS server misconfigured
Stale DNS cache entries
Hostname cannot be resolved
DNS server unreachable

✅ Step-by-Step Solutions

1 Flush DNS and Switch Servers

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

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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 "*5076*" -or $_.Message -like "*ERROR_CLUSTER_MAXNUM_OF_RESOURCES_EXCEEDED*"} | 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

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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.