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SSL Not Working — Troubleshooting

1 min readPublished 26 Mar 2026Updated 16 Apr 202630 views

In this article

  • 1Common Issues and Fixes
  • 2"Not Secure" Warning
  • 3Certificate Not Installing (AutoSSL)
  • 4Mixed Content Warning
  • 5ERR_SSL_PROTOCOL_ERROR

SSL Not Working

Common Issues and Fixes

"Not Secure" Warning

  • SSL certificate may not be installed
  • Go to cPanel > SSL/TLS Status to check
  • AutoSSL installs automatically if domain DNS points to your server

Certificate Not Installing (AutoSSL)

  1. Verify domain DNS points to your hosting server (A record or nameservers)
  2. No CAA record blocking: check DNS for CAA records
  3. Wait up to 24 hours after DNS change for AutoSSL to run
  4. Force AutoSSL: cPanel > SSL/TLS Status > Run AutoSSL

Mixed Content Warning

Your site loads some resources over HTTP instead of HTTPS:

  • Check for hardcoded http:// URLs in your website code
  • WordPress: Settings > General > Change both URLs to https://
  • Use a plugin like "Really Simple SSL" to fix automatically

ERR_SSL_PROTOCOL_ERROR

  • SSL not installed on this domain
  • Try clearing browser cache
  • Check if the domain resolves to the correct server

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