SWPM Connect via SAPUSER not longer supported

Hi Gurus,

When doing an export preparation we got an error in step check the db connection, R3load log listed as below:

(BLD) INFO: kernel release 745 [UNICODE]

(BLD) INFO: data format 1.8

(BLD) INFO: patch number 100

(BLD) INFO: compiled on "Feb 26 2016 15:45:50"

(PRC) INFO: working directory "/tmp/sapinst_instdir/NW740/ORA/COPY/EXP/AS-ABAP/PREEXP"

(PRC) INFO: called "/usr/sap/PAX/D11/exe/R3load -testconnect"

(PRC) INFO: process id 23014

(LOG) INFO: log level: 1

(LOG) INFO: log format: classic

DbSl Trace: Connect via SAPUSER not longer supported.

(DB) ERROR: db_connect rc = 256

DbSl Trace: Connect via SAPUSER not longer supported.

(DB) ERROR: DbSlErrorMsg rc = 29

We had changed the method with SSFS long time ago and it works without problem manually.

/usr/sap/PAX/D11/exe/R3load -testconnect

/usr/sap/PAX/D11/exe/R3load: START OF LOG: 20160913101853

(BLD) INFO: sccsid "@(#) $Id: //bas/745_STACK/src/R3ld/R3load/R3ldmain.c#4 $ SAP"

(BLD) INFO: kernel release 745 [UNICODE]

(BLD) INFO: data format 1.8

(BLD) INFO: patch number 100

(BLD) INFO: compiled on "Feb 26 2016 15:45:50"

(PRC) INFO: working directory "/home/pjxadm"

(PRC) INFO: called "/usr/sap/PAX/D11/exe/R3load -testconnect"

(PRC) INFO: process id 23452

(LOG) INFO: log level: 1

(LOG) INFO: log format: classic

(DB) INFO: connected to DB

(DB) INFO: disconnected from DB

How can i resolve this issue?Latest SWPM tool(SWPM 1.0 SP17 for NW higher than 7.0x) is used. Any comments are appreciated.

Regards,

Feng