WMI

WMI

Hi,
 
I'm having difficulties with WMI on one server.  When i test the credentials from OpManager, SNMP passes but WMI fails.
 
If i open a cmd prompt on the OpManage server, i can use the following command and get a result:
 
wmic /user:<username> /password:<password> /node:<device_ip> systemenclosure get serialnumber
 
This tells me that the Opmanager server can connect to the device ok with WMI.  Is there any other reason why WMI credentials will fail??
Matt