We’re having a similar problem – we can see all the front-end pages, but can’t get to the admin pages. We know the login page itself isn’t the problem – when we try to log in with a deliberately bad password it responds with the right “ERROR: Incorrect password.” message. However, any valid login attempt or any attempt to access …/wp-admin/ causes a redirect loop. We have no plugins installed (all plugin folders are empty currently).
Any ideas, anyone?
I’m also encountering that problem (getting a 404 popped up) when I try to add a gallery to a post. Using WordPress 2.7 and NG 1.0.1.
I also have the WP instance installed as a domain that’s a sub-folder in another domain.
Any help / ideas would be greatly appreciated!