How to fix ERR_UNSAFE_PORT. Step-by-Step Guide

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How to fix ERR_UNSAFE_PORT. Step-by-Step Guide






How to Fix ERR_UNSAFE_PORT in Google Chrome

Learn how to resolve the ERR_UNSAFE_PORT error in Chrome, which occurs when trying to access ports deemed unsafe. This guide provides step-by-step instructions to allow unsafe ports, reset Chrome settings, reinstall the browser, or switch to alternative browsers like Firefox. Find out why Chrome blocks certain ports and how to manage them safely.

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Key Takeaways:

  1. ERR_UNSAFE_PORT Explanation: The ERR_UNSAFE_PORT error occurs when you try to access a port Chrome considers unsafe, typically ports used by insecure or vulnerable services.
  2. Fixing the Error: You can fix this error by explicitly allowing the port number in Chrome’s properties.
  3. Alternative Solutions: Resetting Chrome settings or reinstalling the browser may also resolve the issue.
  4. What to Avoid: Avoid using ports that are blocked for security reasons unless absolutely necessary.
  5. Tools Recommendation: Consider tools like EaseUS DriverHandy to troubleshoot browser-related issues or NordVPN for secure and unrestricted browsing.

Step-by-Step Guide on How to Fix ERR_UNSAFE_PORT Error in Google Chrome

When you encounter the ERR_UNSAFE_PORT error in Google Chrome, it generally means that the browser has blocked access to a specific port number because it considers it unsafe. This issue is common when applications are trying to use ports that can be linked to malicious activities. Here’s how you can solve this problem.

1. Allow Unsafe Ports in Google Chrome

The most straightforward method for fixing this issue is to manually allow the port that triggered the ERR_UNSAFE_PORT error.

Follow these steps:

  • Step 1: Right-click on Google Chrome’s shortcut icon (on your desktop or start menu).

  • Step 2: Click on Properties from the dropdown list.

  • Step 3: Go to the Shortcut tab in the Properties window.

  • Step 4: In the Target box, you will see the path to Chrome – something like this:

    "C:\Documents and Settings\User\Local Settings\Application Data\Google\Chrome\Application\chrome.exe"

  • Step 5: Now, append the following command to the path:

    --explicitly-allowed-ports=YOUR_PORT_NUMBER

    If, for example, the port in question is 6666, it should now look like this:

    "C:\Documents and Settings\User\Local Settings\Application Data\Google\Chrome\Application\chrome.exe" --explicitly-allowed-ports=6666

  • Step 6: Click Apply and then OK to save the changes.

Note: Make sure to restart Chrome for the changes to take effect.

Expert Tip: Only do this for trusted ports and web resources. Allowing a port in a browser doesn’t automatically make it safer but bypasses the restriction for your immediate needs. Always be cautious when interacting with untrusted content.

2. Reset Google Chrome Settings (If Step 1 Doesn’t Work)

If allowing the port does not solve the issue, Chrome’s configuration may be corrupt. Resetting it to its default settings might help.

Here’s how to reset Google Chrome:

  • Step 1: Open Google Chrome.
  • Step 2: In the top right corner, click the three vertical dots (⋮) for the dropdown menu, then select Settings.
  • Step 3: Scroll all the way down and click on Advanced.
  • Step 4: Under Reset and clean up, choose Restore settings to their original defaults.
  • Step 5: Confirm by clicking Reset settings.

Resetting your browser will restore all settings to default values but will not erase your bookmarks or saved passwords.

3. Reinstall Google Chrome

If resetting Chrome does not resolve the issue, you might want to reinstall the browser to get rid of any corrupted files.

Steps to Reinstall Google Chrome:

  • Step 1: Uninstall Chrome:

    • Type “Chrome” in the Windows search bar.
    • Select Uninstall and confirm by clicking Uninstall again.

  • Step 2: Remove leftover files:

    • Manually delete all user data folders by navigating to: 
      C:\Users\YourUserName\AppData\Local\Google\Chrome\

  • Step 3: Reinstall Chrome:

  • Go to the official Google Chrome download page.

  • Click Download Chrome, run the executable, and follow the installation instructions.

4. Try a Different Browser (If the Issue Persists)

Some browsers, like Firefox, allow for easier customization when it comes to unsafe ports.

Firefox Alternate Fix:

  1. Open Firefox and type about:config into the address bar and hit Enter.
  2. Click “I accept the risk!” to continue to the advanced settings page.
  3. In the search bar, type network.security.ports.banned.override.
  4. If it’s not available, click the + button to add this option.
  5. Enter your problematic port (e.g., 6666) as the value and press Enter.

5. System Cleanup and Optimization

Often, accumulated junk files and clutter can interfere with your system and browser performance. Using a tool like Auslogics BoostSpeed or alternatives helps in maintaining system hygiene, potentially resolving recurring issues like ERR_UNSAFE_PORT.

Expert Tip: If you frequently run into tech issues with Chrome, consider regular maintenance with a good system cleaner like the one mentioned above.

6. Consider a VPN for Safety

While modifying ports can be effective, it’s also important to stay safe online. VPNs like NordVPN can encrypt your internet connection and help bypass network restrictions, particularly if you’re dealing with blocked ports.

Additionally, secure management of credentials is crucial when troubleshooting browser configurations. Consider NordPass for seamless and secure credential storage.

Frequently Asked Questions (FAQ)

Q1: What is ERR_UNSAFE_PORT?

ERR_UNSAFE_PORT is an error that occurs in Chrome when the browser tries to connect to ports that it deems unsafe, typically those used by insecure services.

Q2: Why does Chrome block certain ports?

Ports can be used maliciously for attacks or to exploit vulnerabilities. Chrome blocks unsafe ports by default to prevent compromised connections.

Q3: How do I know which ports Chrome considers unsafe?

Chrome blocks ports that are associated with vulnerable older services (e.g., 6660-6669 are blocked because of their relation to IRC services). A full list of blocked ports can be found here.

Q4: Is allowing unsafe ports on Chrome dangerous?

Yes, it can be risky. Only allow ports for websites or services you fully trust. Think carefully before overriding browser security protocols.

Q5: Can a VPN or Proxy help with ERR_UNSAFE_PORT?

While a VPN may bypass some network-related restrictions, it does not directly deal with unsafe port errors on Chrome. However, it can add an extra layer of privacy and security to your connection.

Q6: Does resetting Chrome settings remove bookmarks or saved data?

No. Resetting Chrome will not erase your saved data, such as bookmarks or passwords. However, it will clear configuration settings and disable extensions.

Q7: Is it better to switch browsers if this keeps happening?

Switching browsers like Firefox or using an alternative solution can help if the problem persists unresolved after multiple fixes. Firefox provides more flexibility with port settings.

For more tips on browser-specific fixes or network issues, feel free to leave a comment below or consult Google Chrome’s support page.

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