WordPress site shows “Error 400 page not found” error message after you moved your site to new server. Homepage may be appearing perfectly, but category pages, single post pages etc will give you Error 400.

A wordPress site will show 404 error message when someone try to visit a webpage but it doesn’t exist, or it has been removed, or its URL has been changed; or url is mistype. 404 error message actually show “not [..]