Is the LED on your bluetooth module blinking? Mine seemed to freeze up once (the LED was on solid) and couldn't connect. I power cycled the entire ALP and that corrected the problem The only other bluetooth connection issue I've had is if I've taken my phone out of bluetooth range of my ALP without shutting down the app, it will not automatically reconnect when I return to my car, but will keep searching. Closing and restarting the app wiil reestablish the connection.