Encountering the 'Unable to establish a secure connection' error in WordPress? As seasoned WordPress administrators, we've resolved this frequent issue countless times—especially during plugin or theme installations and updates from WordPress.org. In this expert guide, we'll uncover the root causes and provide step-by-step fixes to get you back online swiftly.
WordPress has a robust built-in update system that routinely scans for plugin and theme updates, displaying notifications when they're available.
To fetch these, your site must connect securely to WordPress.org. Server-side configuration glitches on your hosting can block this connection, triggering the error. You'll typically see a message like the one below:
Let's dive into effective fixes tailored to common scenarios.
We've outlined proven methods below. Select the one matching your setup for quick resolution.
Shared hosting under DDoS attack? Connections to WordPress.org may time out, causing this error.
Wait a few minutes and retry. If it lingers, reach out to your host's support—they handle these expertly.
VPS or Cloud Server Connectivity Problems
On VPS or cloud? DNS misconfigurations might prevent reaching WordPress.org.
Directly route your server to WordPress.org via SSH. SSH (Secure Shell) provides encrypted command-line access.
Windows users: Use PuTTY. Mac/Linux: Terminal app.
Get credentials from cPanel or your host.
Connect like this:
ssh admin@989214.com
Replace 'admin' and '989214.com' with your details.
Then edit hosts:
sudo nano /etc/hosts
Add at bottom:
66.155.40.202 api.wordpress.org
Save, exit, and test updates.
Running WordPress locally (e.g., MAMP, XAMPP, WAMP)? Ensure PHP's cURL extension is active—essential for WordPress.org access.
Edit php.ini (in your PHP folder):
Windows: Uncomment ;extension=php_curl.dll
Mac/Linux: Uncomment ;extension=curl.so
Remove the semicolon, save, and restart Apache.
Check Firewall Ports
cURL enabled? Your firewall might block outbound connections.
Windows: Search 'Windows Firewall,' allow Apache inbound/outbound.
Mac: System Preferences » Security & Privacy » Firewall.
Restart Apache. Changes apply.
This has helped thousands restore seamless updates. For more, see our beginner's WordPress security guide.
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