Scheduler and Polling quits after some minutes, hours, or days

I have 6 ecobee 3’s running for a month or more without a lost token.

I setup a hardware clock/scheduler. Everything works great.

The only piece that I have not replicated is Smart Lighting, but since I don’t use it with any time based events, it hasn’t been worth it for me to catch the once in a great while failure of an off not trigger a few minutes after an on.