6 Ways Stop Firewall from Blocking Wi-Fi

By Dominic Chooper on August 04, 2023

You may encounter a message “your Internet access is blocked” when you try to visit certain websites. This is basically an error message caused by Firewall or an antivirus program installed on your device.

Annoying as it may, there is nothing to worry about because there are some easy and quick fixes to this error.

In this article, you will learn about the causes along with the methods and steps to follow for each in order to remove internet blocking.


Why Does Firewall Block Wi-Fi?

Usually, Firewall and antivirus programs are configured in a specific way to prevent any potentially harmful apps or programs getting into your PC.

So, as a process, it may block your Wi-Fi and, in turn, the internet to prevent website spoofing, phishing scams, ransomware, viruses, and malware from entering into the system through the internet.

The primary purpose of it is to protect user data, information, files, folders, privacy, and functionality of the system.

It is basically a network security device. It monitors all incoming and outgoing traffic and determines whether a specific traffic is to be blocked or allowed, based on a precise set of parameters and security guidelines.

However, while configuring it, a few exceptions may be made, such as the email client or the browser may be excluded from the Firewall exceptions list, which might cause this error.

Also, it may misinterpret signals and decrypt Wi-Fi traffic as a threat, which may lead to this particular issue.

A few other reasons for your Wi-Fi to be blocked by Firewall are:

Irrespective of the reason for this issue to occur, here are some easy and effective solutions for it.

How to Stop Firewall from Blocking Wi-Fi?

One of the most effective ways to prevent Firewall from blocking your Wi-Fi connectivity is to disable it from the System and Security in the Control Panel.

There are also a few simple checks to make to ensure your internet connection is okay, before you start with the more advanced solutions.

More often than not, these simple checks can be the potential fix to the issue of the Firewall clocking your Wi-Fi connection.

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These actions will eliminate other internal issues causing this error. These are:

Now, when the above checks and solutions cannot resolve the issue, here are some more effective methods to rectify the Firewall blocking the Wi-Fi error.

The steps to follow for these methods and some of the above simple methods are explained in detail for you.

Note: For all these examples, it is assumed that Windows Firewall is used and not Avast or any other third-party software. Also note that the settings and interface of Firewall may vary but the general process is the same.

And finally, be informed that disabling Firewall from your system for a long time may cause severe virus infection and other threats.

So, exercise extreme caution while performing a few particular solutions mentioned below.

Method 1: Check the Firewall Configuration for Exclusions in Exceptions List

You will need to check the configuration of Firewall and antivirus programs to find out whether your browser, email client and others are excluded from the exceptions list that may be causing the issue.

In that case, you will need to change the configuration to resolve the error.


Selecting System and Security

Selecting Windows Defender Firewall

Clicking on the option ‘Allow an app or feature through Windows Defender Firewall’

You can also select it from under Windows Defender Firewall in the previous window.

Clicking on the Change settings button

If in case any other program is causing the issue, you will have to include it as a separate exception in the list for best results.

If this does not resolve the issue, you can disable Firewall on your system, in the following way:

Turn off Windows Defender Firewall

This should resolve your issue.

Method 2: Restore Defaults Settings of Firewall

If the above process does not work, you may restore the default settings of the Firewall to stop it from blocking your Wi-Fi.

In this particular method, there are different ways and approaches to try.


Selecting Network and Sharing Center

Clicking on Windows Defender Firewall

Selecting Restore defaults

Clicking on the Yes button in the Restore Defaults Confirmation window

Now, restart your computer to see whether or not the issue is solved.

If the problem still persists, you may try resolving the issue by restoring the default policy in the following way:

Clicking on the Advanced settings option in the Windows Defender Firewall window

Clicking on Restore Default Policy under the Actions section

Clicking on the Yes button on the confirmation window

Default policy was restored successfully

Now, close all windows and restart your system. Check whether the Firewall is still blocking your Wi-Fi.

If you still experience the same problem, try the following method:

Finding Windows Firewall at the bottom on the right side under Advanced network settings

Restore firewalls to default option

This will set everything back to normal.

Close all windows, restart your computer, and try opening a website from your browser after the system restarts. You might see everything working as normal.

Method 3: Run the Network Troubleshooter

If the above solutions could not rectify the error, then there may be issues in the network configuration itself that may be blocking the internet.

Run the network troubleshooter to identify and fix the issues and get access to the internet again.


Going to Network troubleshooter

Select the network adapter to diagnose

Wait for the troubleshooter to scan your system and identify the issues, if any. Then, follow the on-screen instructions to help it fix these issues. When it is complete, close the troubleshooter window.

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You may restart the system and check whether or not the issue has been resolved.

Method 4: Disable the HSS DNS Leak Rule

Check the Hotspot Shield Software Domain Name System (HSS DNS) leak rule and disable it, if you have administrative rights, to restore things back to normal.


Clicking on the Allow an app through firewall option


Finally, restart your computer and check whether your Wi-Fi is working properly or not.

Method 5: Reinstall the Hotspot Shield Software

If you use a hotspot or have it configured in your system, and if it is conflicting and causing the Firewall blocking the Wi-Fi issue, you must reinstall the shield in order to resolve it.


Alternatively, open the Control Panel with Large icons selected in the View by box > Select Program and Features.

Locating the Hotspot Shield software

After the system restarts, visit the homepage of the app and then download and install Hotspot shield again.

Now, check whether the issue is resolved.

Method 6: Run Firewall Reset Command in The Command Prompt

You can reset the Firewall settings by running a specific command in the Command Prompt to resolve the problem of Firewall blocking your Wi-Fi.


Typing in the command netsh advfirewall reset

When the command is executed successfully, type exit to close the Command Prompt.

Restart your system and check whether or not the issue has been resolved.


So, these are the simple steps you can follow to restore the normal functionality of the Firewall in your PC and prevent it from blocking your Wi-Fi.

Often the issue may not always be resolved by a single method. So, you may have to try a couple of them one by one.