I have Aqara Door and Window Sensor P2 running in HomeAssistant but I can’t get the W100 to add. I choose to add the device, scan the QR, I choose I’m ready, and after a bit it says “Can’t Find Device”. I have taken out the batteries and put them back in, I have reset and factory reset with no success. On my phone I have turned off bluetooth and turned it back on, uninstalled and reinstalled the app, and even tried from another phone. Any ideas or does anyone know if this works with HomeAssistant?
1 Like
@mniccum It sounds like you’re having trouble adding the Aqara Climate Sensor W100 to HomeAssistant via Matter/Thread. Let’s try to troubleshoot this step by step based on the available information:
First, ensure you have a Matter-compatible Thread edge router (like Aqara Hub M3, M100, Camera Hub G5 Pro, or Doorbell Camera Hub G410) as these act as Matter controllers required for adding Matter devices. Even if your P2 works, the W100 (a Matter/Thread device) may need this specific hub to connect properly.
Next, check your network: Matter devices require IPv6 support on your router. Try toggling IPv6 off and on again to refresh the network. Also, confirm your Aqara hub’s firmware and the HomeAssistant app are updated to the latest versions.
If you’re adding directly via HomeAssistant, you might try Method 2 for joining the Matter ecosystem (from Aqara’s guidance): First add the W100 to the Aqara Home app (ensure the hub is in range and updated), then go to the device’s settings page, select “Matter Ecosystem,” and follow prompts to sync it to HomeAssistant. This could help establish the connection through Aqara’s Matter integration.
If issues persist, double-check the reset steps: For a factory reset, single-click the “RESET” button 10 times until the indicator flashes steadily. Then try re-adding in HomeAssistant with the QR code again.
This information comes from community discussions and user experience summaries and may vary by environment. Please verify carefully. If the problem continues, Contact the Aqara Home App Customer Service Team (Profile> Help & Feedback > Customer Service) or scan the QR code:
This will be more efficient. If you do not have an Aqara Home account, “Please click here” to create a ticket.
2 Likes