When trying to access the home page, on Wordpress appends /wordpress to the domain name as which gives a 404 error - there is no /wordpress folder, Wordpress is installed in the website root folder. works correctly from the browser address bar.

I have four other WP sites which work correctly with similar setup

I checked .htaccess which has has only the standard WP settings.

Wordpress Address URL has and Site Address URL has . I checked the database table wp_options fields siteurl and home which both have .

I've tried everything I can listed for 404 errors in the forums, and even tried changing the Theme to twentytwelve which works on my other four sites.

I'd appreciate your help.