Hi, I don't know what I did to something that was working.
WPMU permalink set to the default work BUT if I put them in the "Post Name" mode they fail with a 404 message. "Not Found
The requested URL /what-is-timeshare-software/ was not found on this server."
The menu items change but do not work, even when I go to a post and click the preview button.
WP 4.3.1 (just updated)