Beginning at around 8:15 AM US-Eastern time, the Konnected Cloud service stopped getting responses from SmartThings. We suspect that it's related to this incident raised by SmartThings that occurred at the same time: https://status.smartthings.com/incidents/p3b6pn6rt2b5
When the SmartThings connection became unresponsive, our cloud infrastructure on Amazon AWS started scaling up capacity, ultimately overwhelming some services and hitting AWS rate limits. This caused all Konnected Cloud features, including device provisioning, to fail.
We began investigating the incident at 11:07 AM and it was resolved at 12:27 PM