No internet connection is needed once the application and loudspeaker data is downloaded. The prediction calculations are performed on the local computer. To download the loudspeaker and rigging data, in MAPP 3D, click HELP > CHECK FOR UPDATES. If the application is likely to be used in a location that does not have an Internet connection, please download all available loudspeaker data. The rigging hardware for all loudspeakers is downloaded using this same method. Please select “Rigging” from the top of the loudspeaker list.