What is a possible reason for this?

You are upgrading your NOC Firewall (on a Check Point Appliance) from R77 to R80 30 but you did not touch the security policy After the upgrade you can’t connect to the new R80 30 SmartConsole of the upgraded Firewall anymore.

What is a possible reason for this?
A . new new console port is 19009 and a access rule ts missing
B . the license became invalig and the firewall does not start anymore
C . the upgrade process changed the interfaces and IP adresses and you have to switch cables
D . the IPS System on the new R80.30 Version prohibits direct Smartconsole access to a standalone firewall

Answer: A