Hi,
have you tried the server-password-change on the server?
General information
To reconfirm the trust relation between UCS systems, computers need to regularly change the password associated with the machine account. This is controlled through the Univention Configuration Registry variable
server/password/interval
For UCS servers this is evaluated by the script
/usr/lib/univention-server/server_password_change
, which is invoked nightly at 01:00 by cron(8). The interval is controlled through a second Univention Configuration Registry variable
ser…
If this is not working anymore, because the /etc/machine.secret is no longer valid on the master, you may also set the secret for the server account. You can use the Solution from this article, but only just in case, the server-password-change fails!