SAP PCo 2.3 - Authorization Error

Hi Experts,

I'm using SAP PCo 2.3 and trying to create a data server connection from SAP MII 14.0 through PCoConnector.

I could create a data server (type PCoConnector) and enable it, but the status of the dataserver is "Error".

When visited the MII logs viewer, there various errors related to PCo like "AUTORIZATION_ERROR_PCO", "Error while executing PCo Query" & "com.sap.xmii.protocol.ProtocolReaderException: Error reading Header." etc.

While creating the dataserver, it asks for user credentials and I'm using same authorization with which PCo Management Host service and PCo Agent is started.

Can anyone guide as to what authorization is required for Accessing PCo query ?

Thanks,

Sumit