⚠️ 2 verified solutions available for Error 2402 — Last updated 2026-03-13
Error 2402 📋

Fix ERROR_ACTIVE_CONNECTIONS — Windows Error Code 2402

Error 2402 (ERROR_ACTIVE_CONNECTIONS) is a Windows RPC & Network error that occurs when active connections still exist.. This guide provides step-by-step solutions to resolve this issue.

🏷️ Code: 2402 📛 ERROR_ACTIVE_CONNECTIONS 📅 Updated: 2026-03-13 ⏱️ 2 Solutions

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⚡ Quick Fix

Reset Network Stack: Open Command Prompt as Administrator

👇 See all 2 solutions below

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📑 Table of Contents
What is Error 2402? Common Causes Step-by-Step Solutions Prevention Tips Related Errors

💡 What is Error 2402?

Windows System Error Code 2402, known as ERROR_ACTIVE_CONNECTIONS, is a RPC & Network error that occurs during Remote Procedure Call (RPC) and network communication. The error indicates that: Active connections still exist. When this error is encountered, the Windows operating system was unable to complete the requested operation within the network services subsystem. The error code 2402 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_ACTIVE_CONNECTIONS 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 Remote Procedure Call (RPC) and network communication is essential for effective troubleshooting.

⚠️ Common Causes

  • RPC server is unavailable
  • Network connectivity issues
  • Firewall blocking required ports
  • Remote endpoint timeout
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✅ Step-by-Step Solutions

1 Reset Network Stack
  1. Open Command Prompt as Administrator
  2. Run: netsh winsock reset
  3. Run: netsh int ip reset
  4. Run: ipconfig /flushdns
  5. Restart your computer
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2 Check RPC Service
  1. Open services.msc
  2. Ensure 'Remote Procedure Call (RPC)' is Running and Automatic
  3. Also check 'DCOM Server Process Launcher'
  4. Restart both if stopped

🎬 Video Tutorials

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How To Fix Rpc Network 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 "*2402*" -or $_.Message -like "*ERROR_ACTIVE_CONNECTIONS*"} | Format-List

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

🛡️ Prevention Tips

  • Monitor network health regularly
  • Document firewall rules
  • Test connectivity after infrastructure changes
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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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