Can the Network OWL use a static IP address?

The Network OWL is not itself configurable with a static IP address.
On most networks it is possible to set your router / DHCP server to always assign the same (static) IP address via DHCP to the Network OWL.
The Network OWL identifies itself to the DHCP server with its MAC address (MAC ID on back of Network OWL starts 443719xxxxxx).