A Security Policy installed by another Security Administrator has blocked all SmartDashboard connections to the stand-alone installation of NGX. After running the fw unloadlocal command, you are able to reconnect with SmartDashboard and view all changes. Which of the following changes is the most likely cause of the block?

A.
The Security policy installed to the Gateway had no rules in it.

B.
The Gateway Object representing your gateway was configured as an Externally Managed VPN-1 Gateway.

C.
The Allow VPN-1 Control Connections setting in Policy>Global Properties has been cleared.

D.
The Rule Base is configured to allow only the other Administrator’s machine to connect to the NGX Security Gateway.

E.
A Stealth Rule has been configured for the NGX Gateway.