Dropping Wifi - Chime lost Blue light

For the past 6 weeks our Ring Door Bell only intermitently works. It is hardwired and the health is good. For about 6 months the blue ring light is off on the Chime booster but it drops wifi and doesn't reconnect. We've had it nearly 2 years and never had an issue with it before but its driving me mad. I can't get the case off due to arthiritic hands to press the orange button. Any thoughts on this as it will come back on in a few days, work a day and then go off again?