After Migration of Sophos Managment Server to a new Server witch same Name and IP, there are two Entrys in Update Manager witch can't be deleted

Hi,

ineeded to install a new fileserver where we installed Sophos Managment Server.

The old one was a Win Server 2008 R2 and the new one a Win server 2012 R2.

I migrated the Managment Server, because of the policies.

Also i renamed the newone after migration to the name and IP of the old one.

Now i got two entrys in the Enterprise Console with the same servername. One is deaktivated (red cross; the old) and one ist aktivated (green arrow; the new).

In the Update Manager List i got both with green arrows, but i can`t edit the new one, because the old one has the same settings.

Wenn i want to delet the old, i got the following error: "Der lokale Update managerdarf nicht gelöscht werden, da wichtige Daten-Updates andernfalls fehlschlagen."