[ADSM-L] AIX backup failing

Has anyone seen the following.  I have a few servers that report this
every couple of nights, it is not always the same mount point that
fails, but always a TCP/IP connection failure:

10/08/08   20:10:44 Retry # 1  Normal File-->
12,288 /etc/objrepos/CuAt  Changed
10/08/08   20:10:47 ANS1228E Sending of object '/home' failed
10/08/08   20:10:47 ANS1017E Session rejected: TCP/IP connection failure

10/08/08   20:10:47 ANS1809W A session with the TSM server has been
disconnected
. An attempt will be made to reestablish the connection.
10/08/08   20:11:02 ... successful
10/08/08   20:11:30 Retry # 2  Directory-->               4,096 / [Sent]
10/08/08   20:11:30 Retry # 2  Normal File-->
102 /.Xauthority [Sent]


Here are the version I am running

IBM Tivoli Storage Manager
Command Line Backup/Archive Client Interface
  Client Version 5, Release 5, Level 0.6  
  Client date/time: 10/10/08   09:45:47
(c) Copyright by IBM Corporation and other(s) 1990, 2008. All Rights
Reserved.

Node Name: XXXXXXX
Session established with server TSM8: AIX-RS/6000
  Server Version 5, Release 5, Level 0.3
  Server date/time: 10/10/08   09:46:42  Last access: 10/09/08
20:07:20

bash-3.2# oslevel -s
5300-07-03-0811