Hi NHSteve, A few questions that might get you to an answer.
Did this ever work for you or is this a new problem?
It sounds like you are using the older gen 1 cameras since you said you are using the NEST app. There are (2) websites that Google offers to view your cameras. Give these each a try and see if that gets you anywhere.
This is the older one and should most likely be the one to use...
www.home.nest.com
The newer one which might work for you but since this is a preview of the new site coming you can only look at the live images.
home.google.com
The only other thing I can think of is a few years back Google forced everyone to migrate their old NEST account to a Google account that required only the use of a GMAIL email address. If you have not converted over then this could be the problem
Finally, you can always speak with a Google Nest Tech person by filling out a support ticket. After answering question there is an option to escalate to a phone call with a real human.
https://support.google.com/googlenest/gethelp
Good luck and if you find a solution please return here and let us know what the solution was.
