Nest doorbell will not connect

[CCaro]

Hi,

I’m having issues reconnecting my wired Google Nest Doorbell after a power outage.

Here’s the situation:

• The doorbell is powered and wired correctly.
• We performed a full factory reset (held reset button 10–15 seconds).
• We reconnected it through the Google Home app successfully.
• The doorbell now shows a strong Wi-Fi connection in our Helix router settings.
• However, in the Google Home app, the doorbell appears offline OR does not show live video.

What we’ve already tried:

• Restarted modem and router
• Reset and reconfigured the doorbell multiple times
• Ensured phone is on 2.4 GHz during setup
• Reinstalled Google Home app
• Verified other devices (Nest Hub, other camera) are working fine

So currently:

• Doorbell seems connected to Wi-Fi (confirmed by router)
• But Google Home cannot access live stream / shows it offline

Any ideas on how to fix this?

Thanks !

[PatA]

If the Nest doorbell camera was working with your Nest Hub and/or Nest Hub Max it is possible the settings changed when you factory reset the Nest Doorbell. Check Your settings:

To allow your Nest Door Bell to broadcast to a Nest Hub, enable Visitor Announcements in the Google Home app. Open the app, select your doorbell, tap Settings (gear icon), choose "Voice notifications" or "Visitor Announcements," and toggle it on.

If that doesn't fix the problem it may be your chime sensor is defective or no longer working (something I experienced), so I  installed a new sensor from an unopened Nest Doorbell that I had bought as a backup and it works flawlessly now.

If it's not the Chime Sensor, The power surge may have affected the Doorbell Transformer or the Transformer is not pushing enough power to view the camera on your nest hub and/or Nest Hub Max which is exactly what I experienced at another residence.

You need a transformer that is rated to provide enough power to your doorbell camera and to send the video signal through the door bell chime nodule to your Nest Hub and/or Next Hub Max.

I would recommend replacing the existing Transformer with a 24V 40VA Door Bell Transformer Compatible with the Nest Door Bell - It worked for me.

[humbertogarcia]

Hi PatA,

Thank you for participating in this thread and sharing your advice with the community! The suggested settings check is spot on, and your suggested tips for the potential hardware solutions are very helpful. I’ll take it from here and look into other possible causes.

Regards,

Humberto

[humbertogarcia]

Hi CCaro,

Thank you for posting in the community! I understand that your Nest Doorbell (wired) lost its connection to the Google Home app after a power outage, and your troubleshooting hasn't resolved the issue. I appreciate the information you provided about your investigation and the troubleshooting steps tried so far, and I’m happy to help you resolve this situation!

To ensure we're on the same page, could you provide a few more details?

• Confirm your specific Nest doorbell generation; please check out, if necessary: “Technical specs for Google Nest cameras and doorbells.”
• What’s your doorbell light status?
• During the setup process, did you receive any error messages?

Additionally, to see if the restart timing you tried corresponds to your device, check out: “Restart or factory reset Nest camera or doorbell.”

To evaluate the settings configuration and some possible hardware reasons, take into account the information gently provided by @PatA. 

I look forward to your timely response; let's look into this further.

Regards,

Humberto