Sun Ray Connector proxy : Child closed socket prematurely, session shutdown

Dear All,
I'm using SRS 5 & SRWC 2.2 :
$ pkginfo -l SUNWuttsc
   PKGINST:  SUNWuttsc
      NAME:  Sun Ray Connector for Microsoft Windows Operating Systems (opt)
  CATEGORY:  system,sunray
      ARCH:  i386
   VERSION:  2.2_32
   BASEDIR:  /opt
    VENDOR:  Sun Microsystems, Inc.
      DESC:  Commands, configuration, resources and Man Pages
    PSTAMP:  SunOS_5.10_20091021175007
  INSTDATE:  févr 05 2010 10:34
   HOTLINE:  Please contact your local service provider
    STATUS:  Installation complète.
     FILES:       26 chemins d'accès installés
                   9 répertoires
                  10 exécutables
                   1 exécutables setuid/setgid
                9037 blocs utilisés (env.)
The SRWC crash and restart immediately...
As you can see I've some log like this :
Feb  7 03:03:15 SRS Sun Ray Connector proxy:[18056]: [ID 855542 user.error] Child closed socket prematurely, session shutdown
Feb  7 03:03:15 SRS Sun Ray Connector proxy:[18089]: [ID 855542 user.error] Child closed socket prematurely, session shutdown
Feb  7 03:03:23 SRS Sun Ray Connector proxy:[18254]: [ID 855542 user.error] Child closed socket prematurely, session shutdown
Feb  7 03:03:23 SRS Sun Ray Connector proxy:[18214]: [ID 855542 user.error] Child closed socket prematurely, session shutdown
Feb  7 03:03:23 SRS Sun Ray Connector proxy:[18219]: [ID 855542 user.error] Child closed socket prematurely, session shutdown
Feb  7 03:03:23 SRS Sun Ray Connector proxy:[18221]: [ID 855542 user.error] Child closed socket prematurely, session shutdown
Feb  7 03:03:23 SRS Sun Ray Connector proxy:[18220]: [ID 855542 user.error] Child closed socket prematurely, session shutdown
...I'm using a separate DHCP on LAN. DTU & TSE (W2K8) are working 95% of time and sometime and randomly, one DTU has a full black screen. The only way to get the login screen of win 2K8 is to reset his own session.
Help will be really appreciated.
Florent.

I have the same issue . . .
1. Sun Ray 5 (Sun Ray 4.2)
2. SRWC 2.2
3. Solaris 10 u9 X86 on two x2200
4. Terminal Server on Win2K3 R2 Standard x64 Edition SP2
I have a handful of users and they all logon the same way, which is to enter username & password then I have the following lines at the end of the users' individual .dtprofile file . . .
<begin snip>
DTSOURCEPROFILE=true
/opt/SUNWuttsc/bin/uttsc -b -m -O -u uname 192.168.100.29
exit
<end snip>
Of course 'uname' is actually the user name followed by the Terminal Server IP address and as you can see I am using the '-O' option, but every morning all the users on a server have their Sun Ray sessions reset and I find this in the messages file . . .
Mar 16 09:38:31 sunraya Sun Ray Connector proxy:[12941]: [ID 855542 user.error] Child closed socket prematurely, session shutdown
. . . . Using cron, I reset the Sun Ray service twice a day on both servers at 7AM and 7PM . . .
# cat /sunray-restart.script
# This is to restart SunRay 5 service due to
# what I think may be a memory leak that disconnects
# the SunRay Windows Connector every day
/opt/SUNWut/sbin/utrestart -c
echo "#" >> /var/adm/messages
date >> /var/adm/messages
echo "#" >> /var/adm/messages
echo " RESTARTING SUNRAY SERVICE " >> /var/adm/messages
echo "#" >> /var/adm/messages
echo "#" >> /var/adm/messages
. . . But this does not appear to having an affect.
I will be looking around the forums for any other bits of information about this. The "Known Issues" can probably be found in the Release Notes.

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