I'm giving the latest paid version of Kerio 4 firewall a try on my computer again. When I test it at grc.com, it passes the Shields up test, but fails the leak test. Is this a known problem with Kerio 4?
Sunbelt / Kerio 4 has 2 modes - simple and advanced. You must use advanced mode if you want to pass grc leak test. Sunbelt / Kerio 4 is a bit misleading - they claim windows xp firewall is not enough as it only offers inbound protection. Yet their own firewall, when configured in simple mode as the average user would choose also offers only inbound protection.