My Google Authenticator code is giving an error. What can I do?
The accuracy of the code is time-sensitive. If there is a time difference between your devices, it can cause the code to become invalid.
Double-check that you are entering the correct 6-digit code generated by Google Authenticator for Sandwich. Each platform may have separate codes, so ensure you are using the correct one associated with Sandwich and your registered email address.
The accuracy of the code is time-sensitive. If there is a time difference between your devices, it can cause the code to become invalid. Android and Windows phones offer a time correction option within the Authenticator app properties. To access it, tap More (the three-dot hamburger menu) > Settings > Time correction for codes > Sync now.
On iPhones and iPads, make sure that the authenticator device itself is configured to use Automatic Time under the Date/Time Settings.