Can't attach thermostat to app

[jojoplumtree]

I have a new iPhone (13 pro) and ever since have not been able to manage my 3rd generation learning thermostat through my phone.

My app says +add product.  When i go to do this and after i have scanned the QR code, it asked me to enter a key.  However, when i follow the instructions to find the key on the actual thermostat it says connected!

Please help!  So frustrating.

Thanks

[MelbaDT]

Hey jojoplumtree, 

Thanks for reaching out and sorry for the delay. 

Quick question — is this the first time you're setting this up or was it working before on another network or phone? Also, what is the exact message that you're getting? 

Let me know more so I can check on it further. 

Best, 

Melba