Windows 7: Cannot connect to ethernet hardware (unidentified).

Hi, im having problems connecting my windows 7 64bit desktop to a piece of hardware via ethernet. The hardware device basically is a piece of hardware that converts a protocol via ethernet into something else. Windows won't allow me to connect to this piece of hardware and it shows up as "unidentified". The device has a fixed IP of 2.0.0.1 and subnet of 255.0.0.0. I have tried a few things including updating ethernet card drivers, disabling the firewall, stopping and disabling bonjour services and changing the local network policies for unidentified networks to be private instead of public. If i plug this device into my mac it just works without any issues, all i need to do is set the the mac's IP in the same range ie 2.0.0.100.
Any help here would be very much appreciated, Thanks.