id	summary	reporter	owner	description	type	status	priority	milestone	component	version	severity	resolution	keywords	cc
15996	Changing permalinks to custom makes all categories return error 404	wpolitika	Wpolitika	"Hello,

I've been struggling with this problem for two days and I can't figure out what is wrong. The problem seems to be around for 1-2 months but only now have I noticed it.
I am using WordPress 3.1 RC1, the website we are talking about is http://www.notebrother.com.

The issue goes like this:
I am using custom permalinks that have the following structure: /%year%/%monthnum%/%day%/%postname%/

All posts work fine with this permalink structure so I suppose this is not a .htaccess problem.
However if I try to access a category archive, let's say http://www.site.com/category/news/ I get the following error:

    Error 404 - Not Found

    We're very sorry, but that page doesn't exist or has been moved.
    Please make sure you have the right URL.

This problem disappears if I revert to the default permalinks. Using http://www.site.com/?category_name=news works all the time, regardless of what I am doing to the permalinks.

Also if I want to use %category% in the permalink structure, this will make all posts inaccessible, but without an error, the server will simply not be able to process the request and act as if it's down.

I tend to believe this might be due to a bug in version 3.1. "	defect (bug)	closed	normal		Permalinks	3.1	normal	worksforme		pavelevap@…