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Server Firewall Keeps R=Turns On After Reboot

Glenn Escarayan 141 Reputation points
2023-02-07T01:06:01.3+00:00

Hi MS Team,

There is GPO to disable to windows firewall but every time the server reboots, the server firewall keeps turns on automatically and set to enable.

Please advise.

Thanks,

GCE

Windows
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A family of Microsoft operating systems that run across personal computers, tablets, laptops, phones, internet of things devices, self-contained mixed reality headsets, large collaboration screens, and other devices.
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A family of Microsoft server operating systems that support enterprise-level management, data storage, applications, and communications.
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  2. Thameur-BOURBITA 35,436 Reputation points
    2023-02-08T10:20:50.5666667+00:00

    Hi @GCE

    It seems that the GPO is not applied on the impacted machine. Check the list of GPO settings applied on impacted machine by running the following command:

    gpresult /H c:\temp\gpresult.html

    0 comments
  3. Glenn Escarayan 141 Reputation points
    2023-02-08T23:32:57.8233333+00:00

    Hello Bourbita,

    Yes the GPO is not applied. I force apply the GPO it but after reboot, it does not take effect and the firewall is enable again.

    Any thoughts?

    Thanks,

    GCE

    0 comments
  4. Roodenburg, Rico 11 Reputation points
    2023-02-17T08:33:13.8966667+00:00

    I have exactly the same problem with Windows Server 2019. In the GPO we have configured to disable the Windows Firewall. After a daily reboot the firewall is enabled again.

    This issue doesn't occurs with Windows Server 2016, which gets the same GPO settings. I have enabled the audit event for Firewall changes. Event 2002 is interesting:

    A Windows Defender Firewall setting has changed.

New Setting:
	Type:	Current Profile
	Value:	Public
	Modifying User:	NT SERVICE\mpssvc
	Modifying Application:
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  5. Glenn Escarayan 141 Reputation points
    2023-02-21T01:50:22.6133333+00:00

    Hello Roodenburg,

    Thanks for the reply Do you have an alternative fix or seen an issue after you enable audit event for firewall changes?

    Appreciate the advise,

    Thanks,

    GCE

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