Interesting... I haven't encountered this kind of configuration elsewhere (even on other sites within your organization).

This part of the code is open source and can be read here:
https://github.com/tranquilit/pltis_djoin/blob/d905462ba5525cee831ce811dd1ed8fb2c2c8958/src/udjoin.pas#L194

At the very least...

After checking in our Active Directory, the value of the dNSHostName attribute of the domain controller is correct.


The associated code is as follows:


if DomainController = '' then
DCObject := GetDCforIp(ldap)
else
DCObject := ldap.SearchFirst(ldap.WellKnownObject(lkoDomainControllers ...

After looking into it, you're in a strange situation.

We're looking at the domain controller you selected.

Then we make an LDAP request with the name mentioned:

(dNSHostName=srvads.mydomain.lan).

This would mean that the domain controller you have doesn't have the...

Hello

, could you try without adding the machine to an AD group?

Simon:

No, we can't. We don't have access to the configuration XML files, and the ones provided by our organization require DJOIN.
So we're stuck when we start the deployment...