ldap issue

please look at below logs and suggest



 cat ldap_client_file
#
# Do not edit this file manually; your changes will be lost.Please use ldapclient (1M) instead.
#
NS_LDAP_FILE_VERSION= 2.0
NS_LDAP_SERVERS= 192.168.148.20, 192.168.148.21
NS_LDAP_SEARCH_BASEDN= dc=wmaomc
NS_LDAP_AUTH= tls:simple
NS_LDAP_SEARCH_REF= FALSE
NS_LDAP_SEARCH_SCOPE= one
NS_LDAP_SEARCH_TIME= 30
NS_LDAP_CACHETTL= 600
NS_LDAP_PROFILE= default
NS_LDAP_CREDENTIAL_LEVEL= proxy
NS_LDAP_BIND_TIME= 60
wmamas1o{root} # ls -l ldap_client_file
-r--------   1 root     root         409 May 15 12:12 ldap_client_file


# ldaplist passwd
ldaplist: Object not found (Session error no available conn.