All Dual controller VTrak A-Class systems MUST have the ethernet Metadata ports of both controllers connected Metadata network as they are operating as a redundant pair.

If one controller is disconnected from the Metadata network, it will not fully boot and will go into maintenance mode.  

You will see a red flashing LED when the controller does not boot.

This is the expected behavior when one controller cannot see the other controller on the Metadata network; it will go into maintenance mode

Note - This also applies to systems using a USB to Ethernet dongle (adaptor) for the Metadata network connection. Both USB to Ethernet dongles will need to be connected to the Metadata network.