Can't release transports - timeoutduringallocate/CPIC-CALL

Question

When I try to release a transport, I get the message:
>Could not start transport control program tp (TP608),
>There was an attempt to start the transport control program tp using the local RFC interface. An error
>occurred here.
>
>Error code: 4
>RFC error text: timeout during allocate / CPIC-CALL: 'ThSAPCMRCV'
It suggest running SMGW, but that gives me the message. Gateway monitor is deactivated 
I also ran the check transport tool: 
>timeout during allocate / CPIC-CALL: 'ThSAPCMRCV' : cmRc=20 thRc=456#Time out during connection setup (check that partner exists
SM21 shows:
>Communication error, CPIC return code 020, SAP return code 456
> Conversation ID: 05807275
> CPI-C function: CMSEND(SAP)
>Tp call failed (RFC RC = 4: RFC message = timeoutduringallocate/CPIC CALL:'ThSAPCMRCV':cmRc=20thR...)
456 means: Timeout during conn. setup
I've upped the timeout of gw/cpic_timeout to 2 minutes, and still get the error.
In SM59, the RFC trace shows:
>**** Trace file opened at 20090511 212541 Pacific Daylight Time, SAP-REL 700,0,1
>======> CPIC-CALL: 'ThSAPCMRCV' : cmRc=20 thRc=456
>Timeout during connection setup (check that partner exists)
>ABAP Programm: SAPLSTPA (Transaction: SE10)
>Called function module: RFC_TP_INTERFACE_VERSION
>User: MATT (Client: 001)
>Destination: CALLTP_WindowsNT (handle: 3, 05807275, {E4AC3EDE-FA85-F17B-83FC-001
>Error RFCIO_ERROR_SYSERROR in abrfcpic.c : 3295
>CPIC-CALL: 'ThSAPCMRCV' : cmRc=20 thRc=456
>Timeout during connection setup (check that partner exists)
>Error RFCIO_ERROR_MESSAGE in abrfcio.c : 1817
So, I've looked at the destination CALLTP_WindowsNT - it exists in SM59.  I checked the program location is correct and exists - and I ran it in a windows console.   I did a connection test in SM59 and got:
>timeout during allocate / CPIC-CALL: 'ThSAPCMRCV' : cmRc=20 thRc=456 Timeout dur
>ERROR: timeout during allocate
>LOCATION: SAP-Gateway on host SecureBI / sapgw00
Any suggestions?
thanks
matt

Answer 1

Hey, nice to see you are doing some real SAP work too, and not only moderating here (just kidding - keep up the good work).
I suggest you check first if your gateway is up and running. Check the dev_rd trace file for errors (either in SMGW, ST11 or directly in the work directory). Try to telnet to your gateway :
cmd> telnet host1 sapgw00
Trying 10.2.0.1...
Connected to host1.
Escape character is '^]'.
Regards, Michael
Edit: you can also check if you see the process gwrd(.exe)