All attachment pages give 404

Question

I have a major issue with wordpress on my new website. Anytime I upload a new media, its attachment page gives me a 404.

My permalink structure is the following:

baseurl + /%category%/%year%/%monthnum%/%day%/%postname%/

I have hundreds of media (imported from old website) and they all give a 404. I can access the media directly but not the attachment page.

There is an attachment.php provided with the theme and I know it works because my old website used the same theme.

Any idea what to do ?

Answer 1

Actually I got to the bottom of it.

The problem was that I have installed the WPML plugin. But I forgot to install the WPML Media plugin. As soon as I installed it, the attachment pages started working again.

In my opinion, this is unacceptable and I will escalate the issue to WPML team. If the Media plugin is so critical, it should be made obvious to the users or it should be install automatically.

Answer 2

It sounds like a migration issue. This is worth checking:

• Did you replace the old website URL in all your database occurrences using a replacement tool like this?
• Is the .htaccess on your web server updated with the right path and permalink rewriting rules? (Saving again your permalink preferences should do the trick.)