syncrepl simple bind

Hello,

For syncrepl to work do we need to enable the sasl? I had the sasl disabled and configured to replicate using simple bindmethod, with the following config: syncrepl rid=001 provider=ldap://ldap2.example.com type=refreshAndPersist retry="5 5 300 +" searchbase="o=tld" bindmethod=simple binddn="uid=admin,ou=users,o=tld" credentials=password schemachecking=on

but I get the following error:

slap_client_connect: URI=ldap://ldap2.example.com DN="uid=admin,ou=users,o=tld" ldap_sasl_bind_s failed (-1)

However, I can bind and search entries both in cn=config and o=tld from command line using the above binddn and credentials.

Thanks