Should you enter the zero at the start of a verification code?
A six-digit code beginning with zero still has six digits. See why the first zero matters and how converting a code to a number can lose its original length.
Authenticator Cloud Journal
Troubleshooting
Two-factor authentication, digital security and practical guides.
5 articles
Authenticator code not working? Check these six things
The numbers look right, but the website rejects them. Check the account, countdown and device clock before setting everything up again.
Why are two devices showing different codes for the same account?
One device may have refreshed first, or the clocks and setup records may differ. Here is where to check.
Authenticator won't scan a QR code? Try these checks
Check the QR type, image size and site permissions, or use the setup key instead. A few checks can save repeated scans.
Can an incorrect phone clock break authenticator codes?
TOTP codes use device time. Check automatic time settings before reinstalling your authenticator.
