Netatmo devices frequently drop from HomeKit, Google Home, or other smart home platforms while still working in the Netatmo app.

Note: This is an integration issue rather than a core heating fault.

• Update firmware: Ensure the Netatmo Relay is on the latest firmware via the Netatmo app.
• Re‑link integration: Remove the Netatmo accessory from HomeKit/Google Home/Alexa and add it again following the official instructions.
• Avoid duplicates: Do not connect the same Netatmo account to multiple bridges that may conflict (e.g., both via HomeKit and via a third‑party hub) without understanding their interaction.
• Check network stability: Ensure your home network is stable and that the Relay has a strong Wi‑Fi signal.

If instability persists across platforms, contact Netatmo support with logs from your smart home system.