So from the beginning...
1 one light solid 1 fladhing
2 run app, it finds device. Select device and pick WiFi network and serial #
3 second light goes solid and third light flashes
4 eventually the app gives up and says to try again or reset device.
Tried WiFi reset and full factory reset and neither got any further. Also tried to join a guest Network and a different AP that was 2.4 as well but didn't work.
I usually don't get home in time to call them but I'll try on the weekend if I can't get it to work .
Thanks for your help
Update... So I have a working solution. Don't use the Android app. My brother in law set it up with same router setup and his setup fine. The only difference is he has apple and I have Android. Used my daughter's iPod touch and the setup went perfect in one setup and now I can manage it on both devices.
Sorry but that is pretty sad that using an iPod touch is the solution and rachio can't get a flagship phone like the Samsung Galaxy S7 on the latest Android working properly.