What is the purpose of adding a network interface in System -> Network -> Interfaces -> Add ?
I have no Interface added or listed on that page, and OMV is working fine on an Odroid HC2 connected to my router by ethernet, the only network interface on this device. It receives a static IP from the router's DHCP based on the MAC address.
Is there any point to adding the ethernet interface in OMV? The main reason I wonder is because Diagnostics -> System Information -> Performance Statistics -> Network Interfaces is blank. Maybe the interface needs to be added in OMV for the network activity to be monitored?