The first thing you need to do is to check if the drivers are correctly installed for the card. Secondly, try reconfiguring the BOOTP-DHCP application. Go to Tools > Network Settings and make sure everything is configured correctly, because it's possible you've misplaced a number or something related to this process. Additionally, run the software as Administrator. Failing to do so will result in errors related to storage permissions. Even if you configure the application with the correct IPs, Windows won't save them.