Unable to acess confort click

Hello

I have a grinder black installed in a house and until a few days ago was working really well. Somehow now i can't establish conection to the device. The Led's are on and all looks fine but the only way to comunicate with the device is to reboot it and this way i can establish conect with the device for some hours. Then, some hours later this happens again and i lose connection again.

I need help urgent

Best regards