Maico,
Please configure the management server to use an IP address for the control service, media service, and web service. You can do this via the Management Server Configuration tool that is found in the All Programs > NetApp > SnapManager for SharePoint program group.
Also, please change the Agents to use IP addresses for the control service address and the agent address. There is an Agent Configuration tool that is found in the All Programs > NetApp > SnapManager for SharePoint program group.
Also, please check the firewall settings on the Management server as well as the hosts where the SMSP agents are installed.
On the SMSP Managment server these ports need to be open:
SMSP Control Service Port 12000
SMSP Manager Web Service Port 12011
SMSP Media Service Control Port 12001
SMSP Web Service Port 8080 or 8443
Make sure that the Management server can communicate to the NetApp storage over port 80, 443, and 135.
On the server where the SMSP Agent is installed, these ports need to be open:
SMSP Control Service Port 12000
SMSP Agent Port 10103
SMSP Archiver Port 10107
Thanks,
Mark