Fail to deploy update package in workstation's fat client

Hi, my customer used to deploy update package after package build from his workstation's fat client. It's been working fine so far until recent tool release upgrade to 8.98.4.5. It then give some error in R98825D with error code 17 network error

------------------------------- R98825D --------------------------------------------------------------------------------

09/09/13 DB-EAP02 15:00:46 6014 VU130909 DV812 20 Approved 17 Network error.

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Then, below are the partial logs from the jde log and debug log :

--------------------------------------------- jde log -------------------------------------------------------------------------------

7276/4484 MAIN_THREAD                        Mon Sep 09 14:58:39.337012 Jdb_ctl.c3944
 Starting OneWorld

7276/4240 WRK:Starting jdeCallObject         Mon Sep 09 15:06:21.272004 spkgutil.c447
 [PKGBLD] - Mon Sep 09 15:06:21  -  spkgeng.c:1243 PKGENG0026 ERROR: Failed to get lock on server DB-EAP02.