Can't log in to Claude: verification codes and Google sign-in

What's happening

Login failures usually trace back to a different sign-in method than the one used at signup, or a verification email that never arrived.

Fix it

1. Check spam and promotions folders for the Claude verification code before requesting another.
2. Request a new code only after two minutes — rapid retries invalidate earlier codes.
3. If you signed up with Google, use Continue with Google rather than an email code.
4. Check that the email address has no typo or trailing space.
5. Try a private browsing window in case an old session token is interfering.

Still stuck?

Codes are time-limited. If a code keeps expiring, your device clock may be out of sync — enable automatic time settings.