- Plesk Onyx for Windows
Cannot access Plesk via HTTPS protocol on port 8443. The following error in browser:
Secure Connection Failed
SSL certificate for Plesk has been installed incorrectly.
Here is the steps how to secure Plesk with SSL certificate:
- Go to Tools & Settings > SSL/TLS Certificates (in the Security group) and install SSL certificate.
- Then click Change near the Certificate for securing Plesk field.
- In the opened Secure Plesk dialog, select one of the available certificates and click OK .
Refer the following article for details - Securing Plesk and Mail Server