Thin clients crash

Hello,

We have T10 Dell Wyse thin clients connecting by RDP to Windows Server 2008 Virtual Machines.

At random moments in time we experienced the bellow crash on some of them.

The .ini setting we are using are the following:

WNOS settings:

signon=0
AutoLoad=1
maxvncd=5
vncpassword=ThinCli3nt encrypt=no
vncprompt=0 accept=5
TimeZone='GMT + 02:00' ManualOverride=yes daylight=yes start=030506 end=100506
TimeServer=172.16.1.41,172.16.1.42 TimeFormat="24-hour format" DateFormat=dd/mm/yyyy
EnableLocal=yes
include=$ip.ini

$ip.ini settings of one of the thin clients(all of them have similar configuration)

connect=rdp \
description="Default RPD" \
host=URLeng001X120.manufacturing.urlati \
icon=default
domainname=manufacturing \
Fullscreen=yes \
Reconnect=yes \
Autoconnect=yes \
privilege=high lockdown=yes
Exit=all

Is this related to some configuration settings or is it firmware related?

How can we make sure this will not happen again?

Thank you,

Coman Alexandru