Event ID: 10009 - Source: DCOM -> Errors during a Identify Systems

[juergen.mettenbechtle.c]

Here is the Error message I receive it on every System Identification. But only an Windows Server 2003 SP1 Machines. I removed the IP address and Computername from the error message.

Computer: XXXX
Source: DCOM
Category: None
Type: Error
Event ID: 10009
Description: DCOM konnte mit dem Computer "XXX.XXX.XXX.XXX" unter Verwendung eines beliebigen, konfigurierten Protokolls keine Daten austauschen.

Anybody knows how i configure Windows Server 2003 SP1 to fix the Problem ?
We need the WMI-Mapper to reach the Servers behind the Firewall.