Cannot use "Configuratoin Wizard" to set up backup client

Dear All,

I faced the following error when I use "configuration wizard".
"Cannot connect to RPC server on my_client"

The log showed below:
[2636] 06/02/07 15:24:00 CSC: nsrcscd terminating on ps.mkt.com Sat Jun 02 15:24:00 2007
[2636] 06/02/07 15:24:00 CSC: Cleaning up initialized libraries.
[2636] 06/02/07 15:24:00 CSC: Cleanup library C:\Program Files\Legato\nsr\bin\libfsdc.dll
[2484] 06/02/07 15:24:03 create_cl: Connecting to CSC RPC server on x345.dennis.com (1)
[2484] 06/02/07 15:24:03 create_cl: Connected to CSC RPC server on x345.dennis.com
[2484] 06/02/07 15:24:03 log_cl_auth: Client authentication type: RPCSEC_GSS (6)
[2484] 06/02/07 15:24:03 wizardmainwindow::SetPluginInfo(): The client library version is 7.2
Processing SERVER_CLIENT_INIT event.
[2484] 06/02/07 15:24:03 wizardmainwindow::SetPluginInfo(): The client library version is 7.2
[2484] 06/02/07 15:24:03 wizardmainwindow::SetPluginInfo(): The client library path is C:\Program Files\Legato\nsr\bin\libfsdc.dll
[2484] 06/02/07 15:24:03 wizardmainwindow::SetPluginInfo(): The client library path is C:\Program Files\Legato\nsr\bin\libfsdc.dll
[2484] 06/02/07 15:24:03 wizardmainwindow::SetPluginInfo(): The console library path is C:\Program Files\Legato\nsr\bin\libfswiz.dll
[2484] 06/02/07 15:24:03 wizardmainwindow::SetPluginInfo(): The console library path is C:\Program Files\Legato\nsr\bin\libfswiz.dll
[2484] 06/02/07 15:24:03 Loader::GetLibraryName(): Loading NetWorker Filesystem Client, version number is 7.3.2.Build.364.
[2484] 06/02/07 15:24:03 create_cl: Connecting to CSC RPC server on x345.dennis.com (1)
[2484] 06/02/07 15:24:04 create_cl: Connecting to CSC RPC server on x345.dennis.com (2)
[2484] 06/02/07 15:24:05 create_cl: Connecting to CSC RPC server on x345.dennis.com (3)
[2484] 06/02/07 15:24:06 create_cl: Connecting to CSC RPC server on x345.dennis.com (4)
[2484] 06/02/07 15:24:07 create_cl: Connecting to CSC RPC server on x345.dennis.com (5)
[2484] 06/02/07 15:24:08 create_cl: Connecting to CSC RPC server on x345.dennis.com (6)
[2484] 06/02/07 15:24:09 create_cl: Connecting to CSC RPC server on x345.dennis.com (7)
[2484] 06/02/07 15:24:10 create_cl: Connecting to CSC RPC server on x345.dennis.com (8)
[2484] 06/02/07 15:24:11 create_cl: Connecting to CSC RPC server on x345.dennis.com (9)
[2484] 06/02/07 15:24:12 create_cl: Connecting to CSC RPC server on x345.dennis.com (10)
06/02/07 15:24:03 nwwiz: error/warning: front-end or dll may not be built correctly
Started client data thread.
x345.dennis.com: Program not registered
[2484] 06/02/07 15:24:13 Error connecting to the client.
[4508] 06/02/07 15:26:26 CSC: Performing initialization for C:\Program Files\Legato\nsr\bin\nsrcscd.exe
[4508] 06/02/07 15:26:26 CSC: Set working directory to C:\Program Files\Legato\nsr\bin\
[4508] 06/02/07 15:26:26 Command line:
C:\Program Files\Legato\nsr\bin\nsrcscd.exe -t 30
[4508] 06/02/07 15:26:26 CSC: nsrcscd starting on x345 Sat Jun 02 15:26:26 2007
[4508] 06/02/07 15:26:26 CSC: Setting RPC timeout to 30 minutes
[4180] 06/02/07 15:26:27 CSC: Performing initialization for C:\Program Files\Legato\nsr\bin\nsrcscd.exe
[4180] 06/02/07 15:26:27 CSC: Set working directory to C:\Program Files\Legato\nsr\bin\
[4180] 06/02/07 15:26:27 Command line:
C:\Program Files\Legato\nsr\bin\nsrcscd.exe -t 30
[4180] 06/02/07 15:26:27 CSC: The RPC service is already running

RPCinfo output:
rpcinfo -p x345.dennis.com
program vers proto port
100000 2 tcp 7938
100000 2 udp 7938
390436 1 tcp 8569
390435 1 tcp 8503
390113 1 tcp 7937
390402 1 tcp 9001
390115 1 tcp 9169
390103 2 tcp 9469
390109 2 tcp 9469
390110 1 tcp 9469
390120 1 tcp 9469
390109 2 udp 9651
390120 1 udp 9651
390107 5 tcp 8024
390107 6 tcp 8024
390105 5 tcp 7947
390105 6 tcp 7947
390433 1 tcp 9033
390104 105 tcp 9933
390104 205 tcp 8195
390431 1 tcp 8198
program vers proto port
100000 2 tcp 7938
100000 2 udp 7938
390436 1 tcp 8569
390435 1 tcp 8503
390113 1 tcp 7937
390402 1 tcp 9001
390115 1 tcp 9169
390103 2 tcp 9469
390109 2 tcp 9469
390110 1 tcp 9469
390120 1 tcp 9469
390109 2 udp 9651
390120 1 udp 9651
390107 5 tcp 8024
390107 6 tcp 8024
390105 5 tcp 7947
390105 6 tcp 7947
390433 1 tcp 9033
390104 105 tcp 9933
390104 205 tcp 8195
390431 1 tcp 8198

Please give me any ideas.

Thank you,
Dennis