Login Loop Symptoms

Redirect loop: After login, redirected back to login page repeatedly.

Check Cookie Issues

Clear browser cookies or try incognito mode.

Verify Site URL

WordPress → Settings → General → WordPress Address and Site Address must match actual URL.

Common Fixes

Define Cookies in wp-config.php

define('ADMIN_COOKIE_PATH', '/');
define('COOKIEPATH', '');
define('SITECOOKIEPATH', '');

Clear All Caches

Plugin cache, server cache, CDN cache.

Disable Plugins

Rename plugins folder temporarily.

Causes Table

CauseSolution
Wrong site URLFix in settings or database
Cache interferenceClear all caches
Bad pluginDisable all plugins
Cookie pathDefine cookie constants