wnce3001 LAN link down

Hello! I am trying to use my netgear wnce3001 to allow an aquarium controller to be accessed wirelessly. The wnce3001 displays a solid green light, showing that it is connected to my home internet. When I access my home router's webpage, via IP address, the wnce3001 shows up as being connected. The aquarium controller that I am connecting to displays a green light by it's ethernet port, showing that it recognizes something is plugged in. When I type in the adapter's IP address and go to the netgear wizard's statistics page, it shows the LAN  as being "Link down". How do I go about fixing this? The adapter's firmware is updated, the aquarium controller's formware is updated and also works when wired directly to the router.

Router's IP address: 192.168.0.1

WNCE3001 IP address: 192.168.0.12

Aquarium controller's default IP address: 192.168.1.50

Aquarium controller's IP address that I manually put in: 192.168.0.50

I also tried changing the aquarium controller's gateway to my router's IP and also the wnce3001's IP and neither worked.