Chime won’t connect

I have tried to reconnect my chime 100x and everytime we get to the last step and it’s says “there is a fault , try again”. My Chine worked for 1 years without any problems. No wifi has changed, nothing has changed. It’s just stopped working. I have been on the phone to contact support every single time I’ve been disconnected half way through the call and it’s becoming infuriating.