Ldap Authentication SSO configuration failing.

Hi,

I'm trying to add a single sign-on configuration identity source with the source type as Active Directory as a LDAP Server however when I test the connection it is failing with the following error:

     The provided credentials for authentication against LDAP xxxxxx server are not valid

Is there any way to see the logs for this action, so I can determine what the problem is.  As the credentials are correct

Thanks