Have a Nest Thermostat and a Nest Protect.
Changed WiFi router password.
Nest thermostat easy to reset password. Nest Protect not so much.
Nest Protect offline. Cannot connect. Removed from system.
Re add. Tries to connect via thermostat. Get error code P030. This error code not documented anywhere!!!!!!!
Hard reset Nest Protect. Add back. Same result. Error code P030.
Delete thermostat from system. Hard reset Nest Protect. NOW able to add Nest Protect to network!!!!!
Try to re-add thermostat. System tries to use Nest Protect. Get new error code P02(something) didn't write it down.
Delete all devices. Hard reset all devices. Delete home.
Add back home to Nest App.
Add Nest Protect - Error code P030!!!!! F*ck me!!!!!!!!!!!!!!!
EITHER DEVICE PREVENTS THE OTHER FROM BEING ADDED!!!!!!
I'm sorry to hear about your experience on your Nest Protect. I know you did a lot of troubleshooting to resolve this issue. There are still some steps that you can do to pair your Nest Protect back to the Nest App. Don’t forget that the Nest Protect can only connect to the 2.4Ghz bandwidth of the internet.
Give these steps a try:
Keep me posted.