Hi, I have an Amp Pro for a few months. It is used only via HDMI with a Sony TV and experiences the following issue: about once a month, the app on my phone (iOS) stops detecting the amplifier. It can still be turned on and off using the TV remote, and the volume can be adjusted. Then, after a few days, it can only be turned on using the TV remote, and the volume can no longer be adjusted, so I have to restart it by unplugging it. After plugging it back and turning it on, it can connect to the TV but no sound is heard. The white LED blinks continuously and relatively quickly, and the app still does not detect it. To use it again and return to normal operation, it must be unplugged for 24 hours or more. This time, it still cannot be used and hasn't recovered. I have experienced this problem a few times and it is already getting frustrating.