Openldap experts, I am currently running openldap 2.3.43 on a RedHat 5.5 system. I recently had to move one of my replication ldap servers to another box. After doing so, it won't update from the provider any more. I had simply done a slapcat of the provider's db into a ldif file and then slapadd it into the replication server.
Turn up the debug level on the provider, and see if you even see the replica attempting to talk to it. If it is attempting to talk to it, see if it is succeeding or failing to bind. Go from there. If it isn't able to connect to the provider, then perhaps there is a firewall in the way, etc.
--Quanah -- Quanah Gibson-Mount Principal Software Engineer Zimbra, Inc -------------------- Zimbra :: the leader in open source messaging and collaboration