These are my tries, do you see anything wrong here: ldapsearch -h 10.77.125.83 -p 389 -Y DIGEST-MD5 -R agentdev-dc.agentdev.com -X "dn:CN=sburnwal,CN=Users,DC=agentdev,DC=com" -b "dc=agentdev,dc=com" "(cn=iqsyed)" SASL/DIGEST-MD5 authentication started Please enter your password: ldap_sasl_interactive_bind_s: Invalid credentials (49) additional info: 80090303: LdapErr: DSID-0C0904BE, comment: The digest-uri does not match any LDAP SPN's registered for this server., data 0, v1db1 ldapsearch -h 10.77.125.83 -p 389 -Y DIGEST-MD5 -R agentdev-dc.agentdev.com -U sburnwal(a)agentdev.com -X "dn:CN=sburnwal,CN=Users,DC=agentdev,DC=com" -b "dc=agentdev,dc=com" "(cn=iqsyed)" SASL/DIGEST-MD5 authentication started Please enter your password: ldap_sasl_interactive_bind_s: Invalid credentials (49) additional info: 8009030C: LdapErr: DSID-0C0904DC, comment: AcceptSecurityContext error, data 52e, v1db1 Thanks.