After this new version, many dvr for any reason desappear from my app. I realized the app make a connection beteween digital recorder and your internet connection. So im still having a bad experience with this New version. Before that modification it was more functional even when had to wait a few more time to get connected with any qsee dvr. Ive been observed there is a lot lags in transmission and slow device identification when you are on 3G/4g
Emmespereira about Q-See QT View, v4.0