If you're experiencing issues with Coinbase's two-factor authentication (2FA), here are some common troubleshooting steps that might help
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Ensure Correct Code
Make sure you are entering the correct 2FA code from your authenticator app. The codes are time-sensitive and change every 30 seconds.
Time Sync
Ensure your device's clock is synced correctly, as time discrepancies can cause 2FA codes to be invalid. Most authenticator apps have an option to sync the time.
Backup Codes
If you have previously saved backup codes provided by Coinbase, use one of those to regain access.
Reinstall Authenticator App
If the above steps don't work, try reinstalling your authenticator app and re-adding your Coinbase account
Alternative Methods
Check if Coinbase offers alternative 2FA methods such as SMS authentication, and try switching to that temporarily.