Feb. 01, 2017: Currently Google reviews are not been found for accounts that have not authenticated Google My Business account. While we are working to resolve this issue, you may authenticate your Google My Business accounts to retrieve Google My Business reviews. Information on How to authenticate Google My Business account, please refer to the article: How do I authenticate Google My Business account
Feb. 06, 2017:
We have implemented changes in the platform to accommodate Google's recent infrastructure changes.
Google reviews are now being brought into the system without the need for Google My Business authentication.
We will continue to monitor this closely to ensure the process is working smoothly.
Google has made infrastructure changes, we are working to make update to accommodate for these changes.