Hi, fortune solved my problem 🙂
I made a mistake in my settings. I had WordPress-URL: http://example.de/wordpress
and blog-url: http://www.example.de.
After changing the blog-url to http://example.de (without “www”) and updating permalinks, it worked fine!
Thanks for response,
even with all plugins deactivated it’s not working.
Also I have no cache-plugins installed.
It’s not only a problem of the admin bar or something like that, for I can’t access member-only posts.
The problem occurs also for other users (non-admin).
