Major incident

Arduino: Partial degradation on Arduino Cloud and IoT connectivity

Current status of Arduino: Operational — live Arduino status

Timeline

1. May 21, 2026, 01:00 UTC
   resolved
   On May 21, 2025, between 01:02 UTC and 02:26 UTC, Arduino experienced a service disruption affecting device connectivity and API availability. During this time window, users may have encountered issues connecting devices to the Arduino Cloud platform and accessing API endpoints. The incident has been fully resolved as of 02:26 UTC, and all services are now operating normally. We apologize for the inconvenience caused.

Updates as published by Arduino (original).