TOTP stands for Time-based One-Time Password.
It generates a new 6-digit code every 30 seconds based on:
A secret key shared during setup.
The current timestamp on your device.
Time Desynchronization:
The time on your phone (or TOTP-generating device) is not in sync with internet time.
Solution: Enable automatic time sync (NTP) in your device settings.
Incorrect Code Entry:
You mistyped the code or used an expired one.
Solution: Try again quickly before the code refreshes.
Wrong Account Selected:
If your authenticator app has multiple accounts, you may have picked the wrong one.
Solution: Double-check the label on the app and use the correct entry.
Authenticator App Misconfigured:
The shared secret (QR code or manual key) was entered incorrectly when you first set it up.
Solution: Remove and re-add the account, if allowed by the service.
Clock Drift on Server or Device:
Rarely, the authentication server's clock may be off.
Solution: Contact support if the issue persists across devices.
Sync your device clock with internet time.
On iOS: Settings > General > Date & Time > Set Automatically
On Android: Settings > System > Date & Time > Use network-provided time
Try a different device if possible to see if it’s device-specific.
Reinstall or reset the authenticator app (only if you still have recovery options).