Resideo experienced a major incident on December 8, 2025 affecting Resideo Smart Home, lasting 2h 28m. The incident has been resolved; the full update timeline is below.
Affected components
Resideo Smart Home
Update timeline
- identified Dec 08, 2025, 04:17 PM UTC
Honeywell Home devices (Round/T5/T6/WLD/L1/T9/T10/T10+) controlled through the Resideo App cannot be unregistered at this time. Devices are still working manually, and new registrations are succeeding, but due to a 3rd party issue, we are unable to unregister. We are actively working the issue and will provide an update when resolved. We apologize for the inconvenience caused.
- resolved Dec 08, 2025, 06:46 PM UTC
All systems have recovered and are now operational.