Based on this: Hubigraphs 4.8 (The Final Chapter) - #1760 by thomas.c.howard
I don't think the Original Author is going to be helping. I can confirm that connecting the app usually kills the connection. I think the denon can only handle one connection at a time. I'm sure that if someone poked around in the app, creating a routine to "reconnect" after x period of time should be a pretty simple add.
