The DAP-1513 has only one mode.
I have installed the latest firmware "before" settting it up onto my network. I have tried DHCP, Reserved DHCP address and static IP addresses.
Also, the DAP "disappears" from the "connected" devices list on my router but the connected TV and Blu-Ray have Internet accessability each. Each have thier own IP address but mainly the Blu-Ray is listed on the connected device list.