UCS 5.2-5: Backup Directory Node 96univention-samba4 join script fails

Hi All,

I just installed a new Backup Directory Node in my domain (previously containing only the Primary Directory Node and some windows workstations).

I installed the “Active Directory-compatible Domain Controller” app on the Backup (it is already running successfully on the Primary), and ran the join scripts (logged in as the domain “Administrator” account).

The 96univention-samba4 scripts fails with the following error:

Join against S4 Connector server: primary_dc
Forest : domain.tld
Domain : domain.tld
Netbios domain : DOMAIN
DC name : primary_dc.domain.tld
DC netbios name : PRIMARY_DC
Server site : Default-First-Site-Name
Client site : Default-First-Site-Name
Failed to bind - LDAP client internal error: NT_STATUS_CONNECTION_RESET
Failed to connect to 'ldap://primary_dc' with backend 'ldap': LDAP client internal error: NT_STATUS_CONNECTION_RESET
ERROR(ldb): uncaught exception - LDAP client internal error: NT_STATUS_CONNECTION_RESET

Both the Primary and Backup directory nodes run version 5.2-5 errata441.

Any help as to why this happens or how to fix would be greatly appreciated.