Session Expired Causes

Common message: 'Your session has expired' when saving posts or logging in.

Aggressive caching or CDN purging cookies.

Clear All Caches

Browser cache, plugin cache, server cache, CDN cache.

Server-Side Solutions

Increase Session Timeout

Add to wp-config.php: define('AUTH_SALT', 'long random string') – regenerate salts.

LiteSpeed Specific

LiteSpeed Cache → Advanced → Do not cache cookies containing wp_ or wordpress_logged_in.

Solutions Table

CauseSolution
Cache clearing cookiesExclude admin cookies
Low PHP session timeoutIncrease session.gc_maxlifetime
Bad saltsRegenerate in wp-config
Browser issueTry incognito