Rapid Detection & Response (RDR) host isolation occurs by disabling firewall rules with the exception of F-Secure’s own rules. However it would seem, firewall rules set using GPO cannot be disabled using the host isolation feature?
This is correct. GPO rules have precedence and therefore host isolation will not take effect. This will be changed in a future releases to separate the host isolation feature from the Windows firewall function.
Article no: 000024795