At the heart of unlocking its premium features lies one critical string of characters: the .
Click "Activate License" .
Log into the Wordfence Customer Portal and navigate to Billing > Renew . Once payment processes, the same license key will automatically reactivate without needing to re-enter it on your site. Error 4: "cURL error 28: Connection timed out" Cause: Your server cannot contact Wordfence’s servers (often due to a firewall or DNS issue).
Wordfence’s license verification system checks the domain URL. If staging.yoursite.com uses the same key as yoursite.com , Wordfence sees two active domains.
