Note that the HR44 contains a built in Wi-Fi adapter, but I personally would stick with the DECA BB adapter you are currently connected with. Some network issues will cause problems with the system, but if hard wired, like you are, those issues are usually due to configuration conflicts and can be corrected by the proper reset routine.
A lot of new users will suffer some of these problems and will disconnect and reconnect the network connection which causes further configuration confusion. Make sure you don't have any MAC filtering or firewall active on your router, delete the iPad App, do a iPad power reset then reinstall the App and give it another try. Be sure you're on your home network and iPad is on Wi-Fi.