Permalinks lead to 404

Hi everyone,

I’m having a lot of trouble working out why my permalink settings are causing 404 errors when I attempt to view anything but the home page.

I am using Apache 2, and have ensured that mod_rewrite is working in the .htaccess context by uploading a test file to the docroot (index2.php) and replacing the contents of .htaccess with the following.

RewriteEngine On
RewriteRule ^index3 /index2.php [R,L]

When I load mysite.com/index3, the server responds with the contents of index2.php, so mod_rewrite is active and allowed in the .htaccess context.

When WordPress regenerates the contents of .htaccess, it looks like this:

# BEGIN WordPress
<IfModule mod_rewrite.c>
RewriteEngine On
RewriteBase /
RewriteRule ^index\.php$ - [L]
RewriteCond %{REQUEST_FILENAME} !-f
RewriteCond %{REQUEST_FILENAME} !-d
RewriteRule . /index.php [L]
</IfModule>

# END WordPress

This is done automatically after configuring Permalink Settings using the Month and name setting, i.e. https://mysite.com/2011/02/sample-post/.

Everything looks normal to me, what could be going wrong? Any help would be appreciated.