Now that it has been a while, have your cameras connected?
Also, your device sent in a crash report that I happened to notice. It looks like you are overloading it -- We recommend a maximum of 24MP total camera resolution on a single device, and right now you are up to 34MP total, so you're probably going to see poor performance at times. If you're only using it to get alerts you might still be fine, but I would not expect the interactive viewing experience to be good.
If you have a few 8MP cameras with the device, consider manually adding those cameras using the RTSP url for a lower-res substream, rather than using the automatically-discovered full-resolution stream.