Can’t get entry key

[Erica1]

My nest thermostat is linked to my wifi but I can’t connect it to my app. I cannot get the entry key. It is not displayed in the settings where it is supposed to be 

[dkukelko]

Having same problem

There are instructions to get it from setting.  Go there and it says already connected.

It is connected to wifi

I can’t connect to my phone.

[Midcar03]

Mine says it's already connected so I can't get the key. Previous homeowner says he has disconnected but not change on unit. Any advice?

[NellieWI]

On menu where it says “Nest App” mine says “None”.  I can’t find how to fix this to be able to get to the menu level to request an Entry Key.