So when I was setting it up, I accidentally set up a 3rd Nest Wifi point
when I only had 2 so it wasn't able to test because it was thinking I
had 3 in the house. I went in and deleted the point I wasn't using then
restarted and did a mesh test. Ever...
I am having the same issue, I unplugged all devices and rebooted them
and it still won't let me preform a mesh test Its also tells me the nest
router is offline but shows I have a connection when I click on it.