Encountering Windows Error Code ERROR_279 can be frustrating, especially if you’re unsure what’s causing the issue or how to resolve it. This error typically appears during application launches or software installations and usually points to problems related to network connectivity or firewall settings. Don’t worry – in this step-by-step guide, we’ll walk you through practical solutions to fix ERROR_279 and get your system back on track.
What is Windows Error Code ERROR_279?
Before diving into fixes, it’s helpful to understand what ERROR_279 means. This error indicates a connection failure — usually that a program or game can’t establish a network connection. Commonly, this happens when a firewall blocks the connection, or when the network settings are misconfigured.
Common Causes of ERROR_279
- Firewall blocking program or port
- Network connectivity issues
- Incorrect router or network device settings
- Outdated or corrupted network drivers
- Software conflicts or corrupted system files
Step-by-Step Guide to Fix Windows Error Code ERROR_279
Step 1: Restart Your Computer and Network Devices
Sometimes, a simple restart can solve temporary glitches.
- Shut down your PC.
- Unplug your router and modem.
- Wait for 1-2 minutes.
- Plug in and power on your router and modem.
- Turn on your PC and check if the problem is resolved.
Step 2: Disable Windows Firewall Temporarily
The Windows Firewall might be blocking the app’s network connection.
- Press
Windows + Rto open the Run dialog. - Type
control firewall.cpland press Enter. - Click Turn Windows Defender Firewall on or off on the left pane.
- Select Turn off Windows Defender Firewall (not recommended) for both private and public networks.
- Click OK and try running the program again.
Important: If this fixes the error, don’t leave your firewall off. Instead, create an exception (see Step 3).
Step 3: Add the Program to Firewall Exceptions
To allow the application through the firewall:
- Go back to the Windows Defender Firewall control panel.
- Click Allow an app or feature through Windows Defender Firewall.
- Click Change settings.
- Find your program or application in the list; if it’s not there, click Allow another app and browse to the executable.
- Check both Private and Public boxes.
- Click OK.
Step 4: Check Your Router’s Settings
If the error persists, the router might be blocking the ports the application uses.
- Access your router’s admin interface by entering its IP address (commonly 192.168.1.1 or 192.168.0.1) in your web browser.
- Enter login credentials (usually found on the router’s label).
- Navigate to Port Forwarding or Virtual Server settings.
- Add a port forwarding rule for the port required by the program (check the software’s documentation for these).
- Save settings and restart your router.
Step 5: Reset Network Settings
Resetting your network stack can fix corrupted entries or misconfigurations.
- Open Command Prompt as an Administrator:
- Press
Windows + X, select Command Prompt (Admin) or Windows Terminal (Admin).
- Press
-
Run the following commands one by one:
netsh winsock reset
netsh int ip reset
ipconfig /release
ipconfig /renew
ipconfig /flushdns - Restart your computer and check if ERROR_279 is fixed.
Step 6: Update Network Drivers
Outdated or corrupted drivers could cause connectivity errors.
- Press
Windows + X, select Device Manager. - Expand the Network adapters section.
- Right-click your network device and select Update driver.
- Choose Search automatically for updated driver software.
- Follow prompts and restart your PC.
Step 7: Temporarily Disable Antivirus or Third-Party Firewall
Sometimes, security software can be overzealous and block network activities.
- Right-click your antivirus icon in the system tray.
- Look for an option like Pause protection or Disable shield.
- Turn it off temporarily and test the app.
If this resolves the issue, add the application as an exception in your antivirus program.
Step 8: Run Windows Troubleshooter
Windows has built-in troubleshooters that can automatically detect and fix network problems.
- Open Settings (
Windows + I). - Go to Update & Security > Troubleshoot > Additional troubleshooters.
- Select Internet Connections and run the troubleshooter.
- Follow the on-screen instructions.
Step 9: Reinstall the Affected Application
If none of the above steps work, your application files might be corrupted.
- Uninstall the program through Control Panel > Programs and Features.
- Restart your PC.
- Download the latest installer from the official website.
- Install the software and check if the error persists.
Final Thoughts
Encountering Windows Error Code ERROR_279 can feel daunting, but with these detailed steps, you can troubleshoot and resolve the problem effectively. Remember, network and firewall settings are often the culprits, so adjusting those carefully is key. If you’re still stuck after all the steps, it might be worth consulting your application’s support team or reaching out to a professional technician.
If this guide helped you, feel free to share it with others. Happy troubleshooting!
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If you need more help or a personalized walkthrough, just ask!
