Do a reset on the hub by holding the up and down volume buttons on the
side of the gen 2.Found some info about it.
https://support.google.com/googlenest/answer/7073477?hl=en-AU#:~:text=On%20the%20back%20of%20Nest,you%20know%20that%20it's%20resetting...
I had trouble with this and finally got it fixed. I done a reset of the
gen 2 by holding the up and down volume buttons and follow prompts to
reset.https://support.google.com/googlenest/answer/7073477?hl=en-AU#:~:text=On%20the%20back%20of%20Nest,you%...