Still struggling, Below are the Wireshark capture of the error. The LDAP credentials and settings are working quite well on Avaya Workplace softphone. Any more help?
No. Time Source Destination Protocol Length Info
1209 198.052908 XX.XX.XX.XX XX.XX.XX.XX LDAP 68 bindRequest(1) "<ROOT>" simple
1210 198.053988 XX.XX.XX.XX XX.XX.XX.XX LDAP 76 bindResponse(1) success
1211 198.054586 XX.XX.XX.XX XX.XX.XX.XX LDAP 68 bindRequest(2) "<ROOT>" simple
1212 198.055770 XX.XX.XX.XX XX.XX.XX.XX LDAP 76 bindResponse(2) success
1219 198.808133 XX.XX.XX.XX XX.XX.XX.XX LDAP 216 searchRequest(3) "<ROOT>" wholeSubtree
1220 198.809157 XX.XX.XX.XX XX.XX.XX.XX LDAP 228 searchResDone(3) operationsError (000004DC: LdapErr: DSID-0C090A4C, comment: In order to perform this operation a successful bind must be completed on the connection., data 0, v3839) [0 results]
1222 198.876185 XX.XX.XX.XX XX.XX.XX.XX LDAP 225 searchRequest(4) "<ROOT>" wholeSubtree
1223 198.877292 XX.XX.XX.XX XX.XX.XX.XX LDAP 228 searchResDone(4) operationsError (000004DC: LdapErr: DSID-0C090A4C, comment: In order to perform this operation a successful bind must be completed on the connection., data 0, v3839) [0 results]
1236 199.423746 XX.XX.XX.XX XX.XX.XX.XX LDAP 61 unbindRequest(5)