Trouble rejoining dcs

I have two dcs, one backup and one slave that need to be rejoined to our domain. I am having a hell of a time accomplishing this seemingly trivial task. I get this error a lot in the join log:

looking for spn account “dns-computer name” in local samba

Could anybody give me give me a tips as of how to troubleshoot this error?

many tanks in advance

best regards

Can you provide the full log, please?

Hi, SirTux

Thank you for replying. It is highly appreciated as I am pulling my hair on this issue.

There are three pending join scripts on the backup dc:

On the slave dc there are five pending join scripts:

Yesterday I tried to execute the scripts individually, but I have now executed all pending scripts via the GUI on both servers. I have pasted the content of the join.log files below.

In order to troubleshoot the issue, I have also run univention-system-check on the domain master. It reports this issue:

running [samba ] - FAILED -

I suspect this error is the connected to my problem, but I haven’t been able to find info on how to fix it.

I would appreciate any tips which could help me solving the issue. Many thanks in advance!

— edit 2019-11-15: it seems as if this thread is dead. I have therefore removed the logs from the post.

best regards