I have inherited a 389 LDAP environment, which is running on  RHEL 5.5 server. There are two RHEL 5.5 servers in the LDAP environment (389ds1 and 389ds2)

Currently the directory is only on one system as the replication hasn't been working for aprox a year (yikes!!!) I am trying to create a replication agreement between two servers. When I add the replication agreement I receive an error " LDAP server is unwilling to perform" 

My thought is before I introduce a newer version of the LDAP I should try to get the replication between the two existing servers working.

Any thoughts on where to begin troubleshooting this? I am a 389 LDAP noob....