Well, that's one of the reasons why I avoid to set multiple serverID values. And of course that means that you cannot use a replicated cn=config.
Unique server IDs are required when using MMR, period. It is not isolated to the cn=config replication case.
--Quanah -- Quanah Gibson-Mount Product Architect Symas Corporation Packaged, certified, and supported LDAP solutions powered by OpenLDAP: <http://www.symas.com>