If you are still having trouble I would recommend sending in an email to our support team. We have networking specialists that can walk you though and explain what could be causing the issue. If you would like to reply here, please provide the following.
- Light code of the Rachio where you are stuck. I'm guessing light 3?
- What network you are trying to connect to? Is it 2.4 GHz, internal or a guest network, does it have WPA2 encryption or something else, and are the network names or passwords similar between the 2.4 and 5 GHz bands?