How to implement SSO with moodle and wordpress blog?
You can login because you changed you admin password to match on each system.Your other users can't login because they are in effect using 2 separate accounts.Your users on Moodle will need their authentication changing in their profile to "External Database", at present they are most likely set to "manual".
Try editing a user profile and change the authentication method to "External Database" then get the user to login using their Wordpress login details.Should fix it.If it works, change all the other accounts to the same setting.Regards,Lewis