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How to Fix Windows System Error Code ERROR_367: Step-by-Step Troubleshooting Guide


Windows System Error Code ERROR_367 can be a frustrating issue to encounter. If you’ve come across this error on your PC, don’t worry—this guide will walk you through understanding and fixing the problem in clear, simple steps.


What is Windows System Error Code ERROR_367?

ERROR_367 is linked to the system’s networking configuration and usually means "Only one usage of each socket address (protocol/network address/port) is normally permitted." Essentially, this error occurs when a network socket you’re trying to use is already in use, causing conflicts during processes such as server startup, port binding, or application communication.


Why Does ERROR_367 Happen?

  • Multiple applications trying to use the same port simultaneously.
  • Network socket or port not being released properly after use.
  • Software conflicts or misconfigurations, especially in network-related applications.
  • System or registry corruption.
  • Improperly closed network connections.


Step-by-Step Guide to Fix ERROR_367

Step 1: Identify the Conflicting Application or Port

Before diving into fixes, you need to pinpoint which service or application is causing the port conflict.

  • Open Command Prompt as Administrator:

    • Press Win + S, type cmd, right-click on Command Prompt and select Run as administrator.

  • Run this command:
    bash
    netstat -aon | findstr :

    Replace <port_number> with the port you suspect is causing the issue—for example, 80, 443, etc.

  • Note the PID (Process ID) at the end of the line(s).

  • Identify the application:
    bash
    tasklist /FI "PID eq "

    Replace <PID> with the noted Process ID.

This helps you know which program is using the port and causing the conflict.


Step 2: Stop the Conflicting Process

Once you know the program occupying the port:

  • Open Task Manager by pressing Ctrl + Shift + Esc.
  • Find the application or service using the port.
  • Right-click and select End Task.

Alternatively, you can use Command Prompt:
bash
taskkill /PID /F

Note: Be cautious when killing processes. Ensure it’s not a critical system service.


Step 3: Change the Port Number in Your Application

If possible, configure your application or service to use a different port:

  • Access the app’s settings or configuration file.
  • Find the network or port setting.
  • Change it to an unused port number (e.g., from 8080 to 8081).
  • Save and restart the application.


Step 4: Restart Your Computer

A simple restart can release any locked ports or sockets that weren’t properly freed during shutdown.


Step 5: Clear TCP/IP Stack and Reset Network Settings

Sometimes network stack corruption causes persistent port issues.

  • Open Command Prompt as Administrator.
  • Run the following commands one by one:

bash
netsh int ip reset
netsh winsock reset
ipconfig /flushdns

  • Restart your PC to apply changes.


Step 6: Check for Software Conflicts

Certain programs like VPNs, firewalls, or antivirus software can interfere with ports.

  • Temporarily disable your firewall or antivirus, then test if the error persists.
  • If disabling resolves the error, add exceptions to your firewall or antivirus for your app.


Step 7: Update Windows and Network Drivers

Outdated software can cause network-related errors.

  • Go to Settings > Update & Security > Windows Update and install all pending updates.
  • Update your network adapter drivers:

    • Open Device Manager (Win + X > Device Manager)
    • Expand Network adapters
    • Right-click your adapter, select Update driver > Search automatically.


Step 8: Use Portqry Tool (Optional)

Microsoft’s PortQry tool helps you check port status for better diagnostics.

  • Download PortQry.
  • Run it with:
    bash
    portqry.exe -n 127.0.0.1 -e

This confirms whether a port is listening, filtered, or closed.


Step 9: Consult Application Logs & Support

If the error is linked to a particular software, check its logs for clues.

Also, visit the software’s official support channels or forums, as many common port conflicts have known fixes.


Bonus Tips: Preventing ERROR_367 in the Future

  • Always close applications properly to free ports.
  • Avoid running multiple instances of applications that listen on the same port.
  • Regularly update your OS and software.
  • Use port monitoring tools if you consistently manage network services.


Final Thoughts

Windows System Error Code ERROR_367 is often a result of port conflicts but can be solved methodically by identifying the clash, freeing ports, and resetting network settings. With patience and this step-by-step guide, you’ll be back online and error-free in no time.

If you enjoyed this guide, feel free to share it with friends or leave a comment with your experience. Need more Windows troubleshooting tips? Stay tuned for updates here!


Keywords: Windows error 367, ERROR_367 fix, port conflict Windows, network socket error, Windows troubleshooting guide, system error 367 solution, Windows netstat fix


If you’d like, I can also provide screenshots or additional troubleshooting for specific applications—just let me know!

Updated on June 19, 2025
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