I’ve got a brand new gen 2 Rachio, and I’m successful in getting it connected to my WiFi (2nd light goes solid), but not in getting it to connect to the cloud server (3rd light blinks and never goes solid).
I know it’s connected to the WiFi, because I can see its DHCP lease and I can ping it successfully.
I have no firewall blocking outbound connections, but the tech that I spoke with on the phone indicated that the cloud server actually connects to the Rachio. I find this difficult to believe, as that would require firewall ports open and forwarded, static DHCP leases, etc, all of which would be beyond many home users.
I noticed that the SSL certificate is incorrect for https://mqtt.rach.io but that doesn’t necessarily prove anything. The device may simply ignore any SSL errors it encounters.
What else might I want to check?