Modem mode isn't available with Static IP's. It only works with Dynamic setups. Dynamic and Single static will broadcast Wi-Fi, Multi-static doesn't broadcast and will require a 3rd party Wi-Fi router.
First of all I am afraid that the forum is only for consumer customers.
The information that I know is that if you have a static IP address you cannot enable the RG or modem only mode, this is due to the way that VM business deal with the static IP address in Generic Routing Encapsulation (GRE). The only way to use the hiron in modem only mode (RG) is too remove the static IP addresses.