Problem with RFC connection - tp program not registered

Hello everyone

recently there  has appeared a problem with the RFC connection on our system - we received the following set of messages:

• Trace file opened at 20101221 130738 Central European Standard Time, SAP-RE

======> CPIC-CALL: 'ThSAPOCMINIT' : cmRc=2 thRc=679

Tp program is not registered.

ABAP Programm: RSRFCPIN (Transaction: SM59)

User: xxx(Client: 100)

Destination: SIDRFC_IFSAPHRCZPKCP (handle: 2, , )

Error RFCIO_ERROR_SYSERROR in abrfcpic.c : 1501

CPIC-CALL: 'ThSAPOCMINIT' : cmRc=2 thRc=679

Program transakcji nie jest zarejestrowany

DEST =SIDRFC_IFSAPHRCZPKCP

HOST =%%RFCSERVER%%

PROG =IFCZPKCP

GWHOST =ssapprod

GWSERV =sapgw21

I tried to register program with a command:

rfcexec -aIFCZPKCP -gssapprod -xsapgw21

but with no success - the program didn't appear on the list of logged clients on the system in gateway monitor. Frankly speaking we do not know now what else we can do - please help!

We have ECC 6.0 (SAP_BASIS 700 SP18) on Windows Server 2003 R2 x64.

Thanks in advance for any help.

Regards

Peter