SAP NCO RFC connection with SSO - Partnername error

Hi all,

We were used to making a SSO SNC RFC connection by means of the SAP NCO.

However, out of a sudden, we get the below error, leading me to believe that there is an error related to the Partner name "p/secude:CN=SID/snc.DOMAIN.com@DOMAIN.COM". This partnername was specified automatically by the sap nco when using this parameter string:

NAME=
CLIENT=
MSHOST=
SYSNR=
GROUP=
SNC_MODE=1
SNC_SSO=1
SYSID=

Note that we are not making use of any library dlls.

Many thanks

=====

Error type: SAP.Middleware.Connector.RfcCommunicationException

Message:

LOCATION CPIC (TCP/IP) on local host with Unicode

ERROR SNCERR_UNKNOWN_MECH

SncPImportPrName() parsing error

name="p/secude:CN=SID/snc.DOMAIN.com@DOMAIN.COM"

TIME

RELEASE 720

COMPONENT SNC (Secure Network Communication)

VERSION 6

RC -38

MODULE sncxxall.c

LINE 2213

DETAIL SncPSetNewName

COUNTER 2

Source: sapnco_utils

Data: System.Collections.ListDictionaryInternal

Stacktrace: at SAP.Middleware.Connector.CpicConnection.ConnectAsClient(Dictionary`2 options)

at SAP.Middleware.Connector.RfcConnection.ConnectAsClient(RfcDestination destination)

at SAP.Middleware.Connector.RfcConnectionPool..ctor(RfcDestination destination, Boolean forRepositoryCalls)

at SAP.Middleware.Connector.RfcConnectionPool.GetPool(RfcDestination destination, Boolean forRepository, Boolean create)

at SAP.Middleware.Connector.RfcDestination.GetClient(Boolean forRepository)

at SAP.Middleware.Connector.RfcDestination.SetAttributeValues(RfcSystemAttributes attribs)

at SAP.Middleware.Connector.RfcDestination.get_SystemAttributes()

at SAP.Middleware.Connector.RfcDestination.get_Repository()

at bgWorker_DoWork(Object sender, DoWorkEventArgs e) in :line 168

at System.ComponentModel.BackgroundWorker.OnDoWork(DoWorkEventArgs e)

at System.ComponentModel.BackgroundWorker.WorkerThreadStart(Object argument)