The Active interface is the connection method of which Simplifi is accessing the SRMP (Simplifi Remote Management Portal). This interface is either one of two entries;
1. Cellular - This would indicate that the cellular internet is providing internet via Simplifi
2. USB-ETH - This would indicate that a mainline ISP (Internet Service Provider) is providing Internet via the USB to Ethernet Dongle. This is typical in failover or router only instances.