This method requires you to troubleshoot issues manually and edit WordPress files. However this is a permanent and more performance optimized solution. This is what we’re using on WPBeginner.
If you find this method difficult, then you can hire a WordPress developer or use the first method instead.
As part of this method, you may need to edit WordPress theme and code files. If you haven’t done this before, then see our guide on how to copy and paste code snippets in WordPress.
First, you need to visit Settings » General page. From here you need to update your WordPress and site URL address fields by replacing http with https.
Don’t forget to click on the ‘Save changes’ button to store your settings.
Once the settings are saved, WordPress will log you out, and you will be asked to re-login.
Next, you need to set up WordPress redirects from HTTP to HTTPS by adding the following code to your .htaccess file.
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteCond %{HTTPS} off
RewriteRule ^(.*)$ https://%{HTTP_HOST}%{REQUEST_URI}
[L,R=301]
</IfModule>
By following these steps, you will avoid the WordPress HTTPS not working error because WordPress will now load your entire website using https.