I have a server running Windows Server 2019 Standard. I have noticed that Firewall & Network Protection under Windows Security shows that the firewall is off for all three locations (Domain, Private and Public). When I check WIndows Defender Firewall in Control Panel it shows that the firewall is on for all locations and when I run netsh advfirewall show allprofiles from a command line the status for all profiles is also set to on.
If I click the Turn On button in Firewall & Network Protection nothing happens, presumably because the firewall is already on but if I turn the firewall off through Control Panel an additional message appears in Firewall & Network Protection stating "Windows Defender Firewall is using settings that may make your device unsafe" and a Restore Settings button appears. If I click the Restore Settings button I can see that the forewall is truned on through Control Panel but still shows off in Firewall & Network Protection.
I have checked both local and domain group policies and as far as I can see there are no settings configured for Windows Defender Firewall.
It appears that Windows Defender Firewall is on but Firewall & Network Protection is misreporting. Does anybody know how to fix this?
Kind regards
David