Hello MediatrixUser,
thanks for your reply. I already tried to register for the support portal on the page you mentioned and also here: https://support.mediatrix.com/DownloadPlus/login.asp?I
After sending the form there is a message saying that a mail has been sent to me but I haven't received any mail yet. I will wait for another 2 days or so ...
Greetings
Kaminfeuer