Hi,

when i install a new 4.5 Sernet DC all things work fine. After "join" from a Second DC replication will fail from the first start. Its a join and fail.

- I tried it on 2 different distributions. SLES 12 (SP1) and CentOS 7.2 with the same result.
- i tried the internal DNS and bind with the same result.

---Error---
the replication gets an error with 
CN=Configuration,DC=my-domain,DC=de
        Default-First-Site-Name\AD2 via RPC
                DSA object GUID: b2067016-8af0-47eb-ab1f-552adb9ea9be
                Last attempt @ Sun Oct  9 17:24:04 2016 CEST failed, result 2 (WERR_BADFILE)
                36 consecutive failure(s).
                Last success @ NTTIME(0)
---Error---

On CentOS i use Version 4.5.0-SerNet-RedHat-4.el7 / BIND 9.10.3-P4-RedHat-9.10.3-4.el7.centos

I checked after join the msDS-KeyVersionNumber.
ad1 -> msDS-KeyVersionNumber: 1
ad2 -> msDS-KeyVersionNumber: 2

[root@ad1 ~]# ldbsearch -H /var/lib/samba/private/sam.ldb '(invocationId=*)' --cross-ncs objectguid
# record 1
dn: CN=NTDS Settings,CN=AD2,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=my-domain,DC=de
objectGUID: b2067016-8af0-47eb-ab1f-552adb9ea9be

# record 2
dn: CN=NTDS Settings,CN=AD1,CN=Servers,CN=Default-First-Site-Name,CN=Sites,CN=Configuration,DC=my-domain,DC=de
objectGUID: 22e19a5d-088f-4413-9009-96ce367ec6b9

--------------------------------------------------------
# Global parameters
[global]
        netbios name = AD1
        realm = MY-DOMAIN.DE
        server services = s3fs, rpc, nbt, wrepl, ldap, cldap, kdc, drepl, winbindd, ntp_signd, kcc, dnsupdate
        workgroup = MY-DOMAIN
        server role = active directory domain controller
        idmap_ldb:use rfc2307 = yes

[netlogon]
        path = /var/lib/samba/sysvol/my-domain.de/scripts
        read only = No

[sysvol]
        path = /var/lib/samba/sysvol
        read only = No
--------------------------------------------------------

i think its a reproducible error.

if you need more information please write i will upload it.

thanks

Sven