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WiFi change, now Nest Protects won’t connect

Community Member

I have 3 Nest Protect smoke / CO2 alarms 2 wired and 1 battery. I had to make changes to the naming of my WiFi network some months ago and since then I cannot get them back on the WiFi. Taking them down is not an option, life is too short… but connecting via app, I get blue ring on app and protect and nothing happens. Your software gives the user too little info. 




Google Nest does not make it easy to change Wi-Fi settings in its devices, so they recommend, when changing Wi-Fi routers/modems, that you set the network name (SSID) and password to the same values used on the old router/modem.

If you can't do that, then Google Nest's process is to remove the Google Nest device from the Google Nest app or Google Home app (depending on the device) while you are still on the old Wi-Fi network, then do a factory reset, and then re-install while on the new Wi-Fi network.

I'm just another Google Nest customer; those are Google Nest's two options.

Some customers in this forum have reported varying degrees of success in contacting Support and getting walked through various ways to compel their device to factory reset even if they haven't followed the steps above.

Hey there,


I just wanted to jump in here to make sure that you saw our response. Please let me know if you have any other questions or concerns as I will be locking this in 24 hours.


Thanks for the help here, MplsCustomer and Emerson.




Community Specialist
Community Specialist

Hello everyone,


@Johnhenryb thanks for posting here in the community. I understand your inconvenience when your Nest Protects can't connect to your Wifi network. Aside from updating the Wifi network from the Nest App, you may try these steps:

  • You need to get all of them and place them near your Wifi router.
  • Remove them from the Nest App.
  • Reset them to the factory default.
  • Note: Make sure they have a blue light pulsing during setup. Indicating that they are ready to be set up. Also, Nest Protects can only connect with 2.4GHz Wifi network.

Looking forward to your response.


I appreciate your help, MplsCustomer.



Community Specialist
Community Specialist

Hi Johnhenryb,


How's it going with your Nest Protects? We would appreciate it if you could share with us the information I’m asking above. Also, were you able to perform the steps I’m suggesting? We'd be glad to hear from you — We'd like to make sure everything is working.