xmlrpc with ldap authentication

We have an xmlrpc client, using continuum with default authentication all works well.
if we enable ldap authentication, the xmlrpc client works, but for each action continuum seems to make a mixed auth with standard and ldap. For each remote call the failed auth count is increased and the user became locked.
in the fact we have the user remoteuser in old user database and in ldap with different password. Continuum checks both database and ldap. If we set the user password in db the same of ldap then works.

2010-10-25 14:21:06,191 [TP-Processor24] INFO org.codehaus.plexus.redback.authentication.ldap.LdapBindAuthenticator - Searching for users with filter: '(&(objectClass=user)(sAMAccountName=remoteuser))' from base dn: dc=prov,dc=bz
2010-10-25 14:21:06,199 [TP-Processor24] INFO org.codehaus.plexus.redback.authentication.ldap.LdapBindAuthenticator - Found user?: true
2010-10-25 14:21:06,200 [TP-Processor24] INFO org.codehaus.plexus.redback.authentication.ldap.LdapBindAuthenticator - Attempting Authenication: + CN=remoteuser,OU=9.1,OU=9,OU=Central Administration,OU=prov.bz,DC=prov,DC=bz
2010-10-25 14:21:06,211 [TP-Processor24] INFO org.codehaus.plexus.redback.users.ldap.ctl.DefaultLdapController - Searching for users with filter: '(&(objectClass=user)(sAMAccountName=remoteuser))' from base dn: dc=prov,dc=bz
2010-10-25 14:21:06,217 [TP-Processor24] INFO org.codehaus.plexus.redback.users.ldap.ctl.DefaultLdapController - Searching for user: remoteuser
2010-10-25 14:21:06,217 [TP-Processor24] INFO org.codehaus.plexus.redback.users.ldap.ctl.DefaultLdapController - Searching for users with filter: '(&(objectClass=user)(sAMAccountName=remoteuser))' from base dn: dc=prov,dc=bz
2010-10-25 14:21:06,265 [TP-Processor24] INFO net.sf.dozer.util.mapping.util.CustomMappingsLoader - Using the following xml files to load custom mappings for the bean mapper instance: [dozerBeanMapping.xml]
2010-10-25 14:21:06,266 [TP-Processor24] INFO net.sf.dozer.util.mapping.util.CustomMappingsLoader - Trying to find xml mapping file: dozerBeanMapping.xml
2010-10-25 14:21:06,268 [TP-Processor24] INFO net.sf.dozer.util.mapping.util.CustomMappingsLoader - Using URL [jar:file:/opt/egovapps/continuum-1.3.6/WEB-INF/lib/continuum-xmlrpc-server-1.3.6.jar!/dozerBeanMapping.xml] to load custom xml mappings
2010-10-25 14:21:06,330 [TP-Processor24] INFO net.sf.dozer.util.mapping.util.CustomMappingsLoader - Successfully loaded custom xml mappings from URL: [jar:file:/opt/egovapps/continuum-1.3.6/WEB-INF/lib/continuum-xmlrpc-server-1.3.6.jar!/dozerBeanMapping.xml]
2010-10-25 14:21:08,752 [TP-Processor21] WARN org.codehaus.plexus.redback.authentication.users.UserManagerAuthenticator - Password is Invalid for user remoteuser.
2010-10-25 14:21:08,758 [TP-Processor21] INFO org.codehaus.plexus.redback.authentication.ldap.LdapBindAuthenticator - Searching for users with filter: '(&(objectClass=user)(sAMAccountName=remoteuser))' from base dn: dc=prov,dc=bz
2010-10-25 14:21:08,765 [TP-Processor21] INFO org.codehaus.plexus.redback.authentication.ldap.LdapBindAuthenticator - Found user?: true
2010-10-25 14:21:08,765 [TP-Processor21] INFO org.codehaus.plexus.redback.authentication.ldap.LdapBindAuthenticator - Attempting Authenication: + CN=remoteuser,OU=9.1,OU=9,OU=Central Administration,OU=prov.bz,DC=prov,DC=bz
2010-10-25 14:21:08,775 [TP-Processor21] INFO org.codehaus.plexus.redback.users.ldap.ctl.DefaultLdapController - Searching for users with filter: '(&(objectClass=user)(sAMAccountName=remoteuser))' from base dn: dc=prov,dc=bz
2010-10-25 14:21:08,780 [TP-Processor21] INFO org.codehaus.plexus.redback.users.ldap.ctl.DefaultLdapController - Searching for user: remoteuser
2010-10-25 14:21:08,780 [TP-Processor21] INFO org.codehaus.plexus.redback.users.ldap.ctl.DefaultLdapController - Searching for users with filter: '(&(objectClass=user)(sAMAccountName=remoteuser))' from base dn: dc=prov,dc=bz
2010-10-25 14:21:08,798 [TP-Processor20] WARN org.codehaus.plexus.redback.authentication.users.UserManagerAuthenticator - Password is Invalid for user remoteuser.
2010-10-25 14:21:08,801 [TP-Processor20] INFO org.codehaus.plexus.redback.authentication.ldap.LdapBindAuthenticator - Searching for users with filter: '(&(objectClass=user)(sAMAccountName=remoteuser))' from base dn: dc=prov,dc=bz
2010-10-25 14:21:08,807 [TP-Processor20] INFO org.codehaus.plexus.redback.authentication.ldap.LdapBindAuthenticator - Found user?: true
2010-10-25 14:21:08,807 [TP-Processor20] INFO org.codehaus.plexus.redback.authentication.ldap.LdapBindAuthenticator - Attempting Authenication: + CN=remoteuser,OU=9.1,OU=9,OU=Central Administration,OU=prov.bz,DC=prov,DC=bz
2010-10-25 14:21:08,818 [TP-Processor20] INFO org.codehaus.plexus.redback.users.ldap.ctl.DefaultLdapController - Searching for users with filter: '(&(objectClass=user)(sAMAccountName=remoteuser))' from base dn: dc=prov,dc=bz
2010-10-25 14:21:08,823 [TP-Processor20] INFO org.codehaus.plexus.redback.users.ldap.ctl.DefaultLdapController - Searching for user: remoteuser
2010-10-25 14:21:08,823 [TP-Processor20] INFO org.codehaus.plexus.redback.users.ldap.ctl.DefaultLdapController - Searching for users with filter: '(&(objectClass=user)(sAMAccountName=remoteuser))' from base dn: dc=prov,dc=bz