It's recommended to reserve IP addresses for devices that need router management, PCs, Laptops and game consoles. Items like NAS, Printers, Cameras, sensors and controllers, Set a Static IP address OUT side of the main routers DHCP IP address pool(192.168.0.100 thru .199). Not with in and don't set a reservation on the router for the same address. Just set a Static address ON the device only.
I tend to use the model # of the device as the last IP address #: 192.168.0.32 or .25 for the DNS-325.