defender firewall rule not shown in Windows 10 computer

Question

Hi experts,

I have created the Microsoft Defender Firewall Rules, and deployed it to test Windows 10 devices. I create the rules under Devices > Windows > Configuration profiles > Create profile > Choose Windows 10 and later as the platform, Choose Templates, then Endpoint protection as the profile type. Select Windows Defender Firewall, then Firewall rules.

But I can't find the firewall rules in the firewall settings on the computers. How could I make sure the firewall rules are arrived and applied to the computers?

Answer 1

You should create rules from Endpoint Security Node - Firewall section, not via Config Profiles.

I just wrote a blog about this topic how to deal with issues - https://www.linkedin.com/pulse/intune-security-baselines-firewall-rules-pavel-mirochnitchenko/?trackingId=Uk2WJmEIT%2Fq42u3BSXcScA%3D%3D

Answer 2

Hi,

Thanks for your reply.

Per my experience, Windows Defender Firewall MMC does not display every Firewall rules, there are multiple stores like Local, GroupPolicy etc. Please check the following:

1,Please open Windows Defender Firewall MMC and look at the monitoring/firewall section, check if the rules arrived on the devices.

2,We can also check the registry and see if the rules have applied under

HKEY_LOCAL_MACHINE\SYSTEM\ControlSet001\Services\SharedAccess\Parameters\FirewallPolicy\Mdm\FirewallRules

A helpful article for your reference: The Windows Defender Firewall rises

Note: This is non-Microsoft link, just for your reference. Thanks for your time. Have a nice day!

Best regards,
Simon

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Answer 3

Hello there,

The firewall rules that apply to that profile (Domain, Private, Public) is shown in

Windows Defender Firewall... -> Monitoring -> Firewall

Once successful, your rules should appear in the:

Control Panel\System and Security\Windows Defender Firewall\Allowed applications

MMC does not display every Firewall rules, there are multiple stores like Local, GroupPolicy etc. use PowerShell to retrieve the Firewall rules for the "Active Store" and you will find your configured rules:

Get-NetFirewallRule -PolicyStore ActiveStore

You can automatically diagnose and fix problems with Windows Firewall,

Follow these steps to automatically repair Windows Firewall problems:

Select the Download button on the page found in the below link

In the File Download dialog box, click Run or Open, and then follow the steps in the Windows Firewall Troubleshooter.

https://support.microsoft.com/en-us/windows/automatically-diagnose-and-fix-problems-with-windows-firewall-513e9cf8-19ae-d579-2092-d5e64fe06f5f

Hope this resolves your Query !!

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