Here my problem.  On backup, the session get lost.

Setup Server : TSM Server Version 4, Release 2, Level 2.0 ( Windows Version NT 
4.0 )
Setup Client : TSM Novell NetWare( Ver. 4.11 ) Backup-Archive Client    Version 
4 Release 1, Level 3

Here a log example :
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07/09/2002 23:43:08 --- SCHEDULEREC OBJECT BEGIN BACKUP_23_45 07/09/2002 
07/09/2002 23:43:08 --- SCHEDULEREC OBJECT BEGIN BACKUP_23_45 07/09/2002 
23:45:00
...
07/10/2002 01:28:55 ANS1809E Session is lost; initializing session reopen 
procedure.
07/10/2002 01:29:15 ... failed
07/10/2002 01:34:16 ANS1809E Session is lost; initializing session reopen 
procedure.
07/10/2002 01:34:37 ... successful
07/10/2002 01:34:44 --- SCHEDULEREC STATUS BEGIN
07/10/2002 01:34:44
07/10/2002 01:34:44
07/10/2002 01:34:44 Total number of objects inspected:   48,465
07/10/2002 01:34:44 Total number of objects backed up:      386
07/10/2002 01:34:44 Total number of objects updated:         73
07/10/2002 01:34:44 Total number of objects rebound:          0
07/10/2002 01:34:44 Total number of objects deleted:          0
07/10/2002 01:34:44 Total number of objects expired:         85
07/10/2002 01:34:44 Total number of objects failed:           0
07/10/2002 01:34:44 Total number of bytes transferred:    69.37 MB
07/10/2002 01:34:44 Data transfer time:                5,064.39 sec
07/10/2002 01:34:44 Network data transfer rate:           14.02 KB/sec
07/10/2002 01:34:44 Aggregate data transfer rate:         10.61 KB/sec
07/10/2002 01:34:44 Objects compressed by:                   14%
07/10/2002 01:34:44 Elapsed processing time:           01:51:34
07/10/2002 01:34:44 --- SCHEDULEREC STATUS END
07/10/2002 01:34:44 ANS1369W Session Rejected: The session was canceled by the 
server administrator.

07/10/2002 01:34:44 --- SCHEDULEREC OBJECT END BACKUP_23_45 07/09/2002 23:45:00
...
07/10/2002 01:34:44 ANS1512E Scheduled event 'BACKUP_23_45' failed.  Return 
code = 4.
07/10/2002 01:34:44 Sending results for scheduled event 'BACKUP_23_45'.
07/10/2002 01:34:45 Results sent to server for scheduled event 'BACKUP_23_45'.
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Here the connexion setting from dsm.opt
Here the connexion setting from dsm.opt

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COMMMETHOD                    TCPip
COMMMETHOD                    TCPip
TCPSERVERADDRESS         10.10.10.10
TCPPORT                            1500
compression yes
LARGECOMmbuffers YES
tcpbuffsize 64
tcpwindowsize 64
txnbytelimit 2097152
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Here the dsmserv.opt
Here the dsmserv.opt
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TCPNODELAY YES
TCPNODELAY YES
TXNGroupmax 256
COMMTimeout 600
IDLETimeout 60
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Sometime i get more than one "ANS1809E Session is lost - Successful "  Sometime 
i get more than one "ANS1809E Session is lost - Successful "  before i get a 
reopen procedure failed.
I always get a " ANS1369W Session Rejected: The session was canceled by the 
server administrator" after that. 

I read somewhere that putting a higher number for the COMMTimeout ( 600 sec ) 
and IDLETimeout ( 60 mins ) can
resolve my problem..

But is't really all i can do ?  I've found nothing about SESSION Timeout.. 
How can I set my connexion ?

Can you help me ? Im a little green with TSM right now, but i try to figure it 
all.  RTFM is my motto, but the boss here
don't seems to have the time I need to read it all ... If you can push me on 
the right direction..


Thx