Chime Pro 1st gen and Chime no sound when doorbell pressed

My Chime Pro 1st Gen does not play a sound when the doorbell is pressed. In the app it is set to play a sound and it is not on snooze. The device health is good and nothing else has changed. Now if I power of the Chime Pro and turn it back on it will play when the doorbell is pressed. but leave it a couple of hours and when the doorbell is pressed it does not ring in the house. This is also the same for the standard wireless chime again 1st Gen. I have tried moving things off the chime pro network onto my wifi and still the problem exsists. I do get a notification in the app when the doorbell is pressed but i dont always have my phone on me so this is not a solution. Can anyone Help?