Delete them totally from the the app and start all over but start with
the second one first! Then load the remaining nest. There have been
instances my WIFI GOES WIFI and I lose the ability to control either of
my units. I start from scratch and they...
This worked for me also. Just got done with it, had to do a factory
reset on the original unit(first one) once i Got the second unit to
connect. Removed the original unit that connected successfully. Added
the second unit that wouldn't connect. It's ...