Updated to 6.5.1 from 5.0.12 and LDAP is not working

HCL Domino Domino Forum
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A few items can not search the LDAP server/service on our new 6.5.1 server. The same devices can search and resolve on our 5.0.12 server.

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Subject: Updated to 6.5.1 from 5.0.12 and LDAP is not working

Are you using extended ACL’s on the 6.5.1 server? This automatically disables anonymous LDAP access.