Windows Firewall status is red with error message: "Windows Defender firewall is not using the recommended settings to protect your computer"

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Windows Firewall status is red with error message: "Windows Defender firewall is not using the recommended settings to protect your computer" - F-Secure Community

Issue:

Windows Firewall status is red with error message: "Windows Defender Firewall is using settings that make the device unsafe"
The Windows Firewall state is set to: ON
Incoming unknown connections setting is set to: Inbound connections that do not match a rule are allowed

Resolution:

If Windows Firewall is showing its status as a red white cross, and the message: "Windows Defender Firewall is not using the recommended settings to protect your computer". This could be if both of the following settings have been set to allow:

Inbound connections that do not match a rule are allowed
Outbound connections that do not match a rule are allowed

Unknown inbound connections should not be allowed. This setting can have been changed either from the F-Secure firewall profile or by using GPO.

First make sure that the setting has not been set using the F-Secure firewall profile:

Open the Policy Manager console
Select the host or domain from the Domain Tree
Go to the Settings tab
Go to the Firewall settings page
Ensure the value under "Profile being edited" is the current profile in use
Set the value of Unknown inbound connections to Block
Distribute the profile (ctrl +D)

Once the host receives the new profile the firewall should stop displaying the message and the status should turn to green.

If the Windows Firewall would still show "Inbound connections that do not match a rule are allowed", make sure that the setting has not been forced using GPO.

Article no: 000018337