Software Update Task Failed

Hi Guys,

Using System Updating in OME through iDRAC fails. The packages are copied successfully, during the next step I get the following error:

 
Downloading Packages.
Check the following: Credentials entered are valid, iDRAC is reachable from OME host and iDRAC is in a good state.
Software Update Task Failed.

What's going wrong here? The firmware-release for the iDRAC on the server (DL2200) is 1.90.

Thanks for your help,

Stefan