My nest Yale lock has gone offline together with my doorbell. This definitely tells me there is possibly an internet issue. However, the worrying part is that all my pre programmed codes are not working so I am effectively locked out of my home.
I apologize for my late response and thank you for all of your patience while waiting for a reply. I can definitely understand how frustrating your situation must be, but I wanted to make sure that your issue was addressed. Do you still need help with this issue? I know that there's been a delay in response since you posted.
Please let me know if you need further assistance.