The Bluetooth connects easily and quickly but the amp either says hardware not responding or more commonly syncing. After a minute of the status saying syncing the app just closes. The Bluetooth connection still shows connected, the app is just not communicating with the amplifier. I reset the amp, reload the program and all the other troubleshooting. After 5 to 15 minutes of trying all kinds of things it works and sounds great. I am however really getting fed up with not being able to just turn it on and play. I have the latest firmware update and have tried all troubleshooting documented. I have had the amp for a month and this has been an ongoing issue on and off. I would have returned it to the store but it simply sounds so good when it works. I have been hoping for an update that would fix this but so far no luck.