Three failure modes for WordPress login
The articles above split WordPress login problems into three groups, because the diagnosis path is genuinely different for each. Confusing them is what makes this category so frustrating to troubleshoot.
- Authentication never completes. You submit the login form, the page reloads, and you are back on the login screen with or without an error. The session was not established. The redirect-loop article and the cookies article cover this case, because the cause is almost always a session or cookie that the browser, WordPress, or a security layer rejected.
- Authentication completes but access fails. You log in successfully, but then you see a 403, a "sorry, you are not allowed to access this page" message, or wp-admin loads to a blank or partially broken state. The 403 article, the no-access article, and the "sorry, you are not allowed" article cover this case, because the cause is a permissions or capability mismatch, not a login failure.
- The login flow itself is broken. You cannot log in because the password reset email never arrives, or because wp-admin hangs after login and never finishes loading. The password reset article and the admin-stuck-loading article cover this case, because the cause is in the email pipeline or in a slow request inside wp-admin, not in authentication or permissions.
Pick the article that matches the failure mode you are seeing rather than the article whose title sounds closest. The diagnosis path is what matters.
