Unable to communicate to CMS server - HTTP respose "Unauthorised" from CMS

Hello Friends,

Not sure whether i'm posting in right forum or not but still giving a shot.

I'm trying to set up transport of XI content using CMS. We have <b>central NWDI</b> where domain and track was created for integration repository and directory objects. we have created a user nwdi_cmsadm and password is maintained same in XI server, SLD, NWDI. His permissions was set to NWDI.Administrator and in VA to LCRInstancewriteall.

I have set the exchange profile parameters also

com.sap.aii.repository.serviceuser.name.cms - nwdi_cmsadm

com.sap.aii.repository.serviceuser.pwd.cms

com.sap.aii.directory.serviceuser.name.cms - nwdi_cmsadm

com.sap.aii.directory.serviceuser.pwd.cms

when ever I do the transport, I get an error

<b>Unable to communicate to CMS server http://server:port</b>

<b>Details: HTTP respose "Unauthorised" from CMS server</b>

Is there any other permissions or any step missing which is causing this error.

Thanks in advance,

Praveen