--- Forwarded Message from Ralph Schultz <[log in to unmask]> ---

>Date: Sat, 20 Sep 2003 09:20:26 -0400
>From: Ralph Schultz <[log in to unmask]>
>To: Language Learning and Technology International Information Forum    <[log in to unmask]>
>User-Agent: IMHO/0.98.3 (Webmail for Roxen)
>Subject: Re: #7245.2 Tandberg proprietary network (1)
>In-Reply-To: <[log in to unmask]>

------------------
We at the University of Virginia are running Server 2003, we use 
Divache with class net on Windows 2000 machines. We are set up as a 
Domain and we do not seem to experience the problems that you are 
refering to. We have just added a wonderful program called Deep 
Freeze to our build. Deep Freeze automatically shuts down computers 
and prevents students from loading unwanted material onto our 
computers. When I was visiting the Language Lab at Cornell I noticed 
that they are also using this program... Have you spoken to Nils 
Sodderman about your dilema?

Ralph Schultz

-------------------
> --- Forwarded Message from Deanne Cobb <[log in to unmask]> ---
> 
> >From: Deanne Cobb <[log in to unmask]>
> >Sender: [log in to unmask]
> >Date: Wed, 17 Sep 2003 15:51:57 -0600
> >To: Language Learning and Technology International Information 
Forum    <[log in to unmask]>
> >Subject: Re: #7245.1 Tandberg proprietary network (1)
> >In-Reply-To: <[log in to unmask]>
> >References: <[log in to unmask]>
> >Disposition-Notification-To: Deanne Cobb <[log in to unmask]>
> >Return-Receipt-To: Deanne Cobb <[log in to unmask]>
> >Priority: NORMAL
> 
> ------------------
> We, too, run the ICM Divace Duo lab at our institution 
> although without the ClassNet addition.  We haven't 
> suffered the same problem; however, to simplify matters 
> we have created a lab where all of the students use a 
> generic username and password and in fact, the computers 
> auto log-on (so it eliminates problems due to students 
> mistyping usernames or passwords).  We also restart our 
> computers between each lab so that our security system 
> can erase any student saved materials and revert the 
> system back to the administrator-set settings.  
> 
> The only times that we have had problems with the student
> computers losing contact with the ICM have been when A) 
> The network fails or B)the CER is turned off at the front
> or C) a fuse is blown in the ICM system or D) the 
> network drop that that particular student computer is 
> using is faulty. I know that there has been instances 
> when I have needed to log onto the front computer using 
> my own username and password in the middle of the lab to 
> complete some administrative work and this has not caused
> any problems. However, we do have a dual console, so 
> perhaps the lack of problems is due to the fact that 
> there is always one or the other front computer in 
> operation.
> 
> There may be another difference in installation, 
> however, that might be causing the problem. My 
> understanding is that one can choose an installation 
> where the media files that a student accesses are stored 
> on the front computer CPU or one can choose to have these
> media files stored on the computer network.  We chose to 
> have the latter.  Perhaps, if your choice was the former,
> this may be a source of the problem as restarting the 
> front computer would obviously interrupt a student's 
> access to these files.
> 
> This is a lot to read and understand so if you would like
> to continue speaking off list to clarify anything I may 
> have said, I would be willing to speak further with you.
> 
> Deanne Cobb
> University of Regina, Canada
> 
> On Tue, 16 Sep 2003 15:55:51 EDT LLTI-Editor <LLTI-
[log in to unmask]> wrote:
> 
> > --- Forwarded Message from Judy Shoaf <[log in to unmask]> ---
> > 
> > >Date: Mon, 15 Sep 2003 20:11:55 -0400
> > >From: Judy Shoaf <[log in to unmask]>
> > >Reply-To: [log in to unmask]
> > >User-Agent: Mozilla/5.0 (Windows; U; Windows NT 5.1; en-US; 
rv:1.4) Gecko/20030624
> > >To: Language Learning and Technology International Information 
Forum    <[log in to unmask]>
> > >Subject: Re: #7245 Tandberg proprietary network
> > >References: <[log in to unmask]>
> > >In-Reply-To: <[log in to unmask]>
> > 
> > ------------------
> > Our system is starting its 3rd year and runs Windows 2000, but it 
sounds 
> > like a similar setup. However, we do not have individual 
authentication 
> > for the students and instructor. It is true that the Divace Duos 
do not 
> > function if they can't detect the ICM.
> > However, the shutting and closing of the Divaces, or the 
restarting of 
> > individual computers, should not affect the functioning of the 
ICM. It 
> > certainly doesn't in our lab.
> > 
> > If the system is used for drop-in labs or other use, then 
probably you 
> > should have an administrator log in to the instructor computer in 
the 
> > morning and leave it on all day so that the ICM is not closed.
> > If your system is used only for classroom use, you could just 
have the 
> > instructor restart the student computers before he/she logs out--
that 
> > might maintain the connectivity between ICM and the student 
computers. 
> > IE, the ICM is always turned off after the student computers, and 
> > restarted before they come back on.
> > 
> > Have you contacted your rep, or Nils Soderberg of Tandberg, who 
is their 
> > national tech guru? They can't always wave a magic wand (too many 
> > different kinds of installations) but the problem you describe 
re. the 
> > ICM losing contact with the student computers seems like 
something they 
> > would recognize.
> > 
> > Judy Shoaf
> > 
> > LLTI-Editor wrote:
> > 
> > > --- Forwarded Message from <[log in to unmask]> ---
> > > 
> > > 
> > >>From: <[log in to unmask]>
> > >>To: [log in to unmask]
> > >>Subject: Tandberg proprietary network
> > >>Date: Fri, 12 Sep 2003 15:52:48
> > > 
> > > 
> > > Dear colleagues,
> > > Our Tandberg/Divace Duo language lab consists of PC's and two 
servers running
> > > Windows 98. We need suggestions for reconciling network 
security with the
> > > requirements of the lab software and for preventing crashes.
> > > 
> > > The 21 PC's are connected to a local proprietary network for 
the server
> > > running Tandberg's ICM software and ClassNet.  The entire lab 
is also connected
> > > to a second network for log on, Internet access and drive 
mappings to file
> > > servers on the campus network.  The campus network connection 
also affords
> > > access to a server running Rosetta Stone.
> > > 
> > > For security reasons, all lab users including teachers working 
at the server
> > > machines must log in and out using their campus domain 
usernames and passwords.
> > >  This creates a communication problem between the student 
stations and
> > > the teacher machine, which is the ICM server.  When a teacher 
or student
> > > user logs out, the ICM and/or Divace software is automatically 
closed.
> > >  When it is subsequently reopened by later users, the ICM 
server can no
> > > longer reach out to the student stations.  For example, it is 
not possible
> > > to launch Divace Duo or to shut down the student machines from 
the ICM.
> > >  When Divace Duo is open, error messages sometimes appear on 
the student
> > > machines warning of communication problems with the ICM, and 
student work
> > > is sometimes lost.  Has anyone found a solution to this problem?
> > > 
> > > Secondly, our lab and its Tangent computers are four years old 
and have
> > > unfortunately been plagued since opening with technical 
problems which
> > > severely limit its use.  The most common problem is machines 
freezing and
> > > crashing.  Up to one third of the lab crashes each day, a 
problem which
> > > persists even though the student stations were just reimaged.  
The crashes
> > > occur about equally on start up, on shut down and while running 
during
> > > the day.  Our IT department believes that the problem is 
somehow caused
> > > by the nature of the proprietary network installed by Tandberg, 
or by its
> > > interaction with the campus network.  Has someone experienced 
problems
> > > of very frequent crashes who could suggest some steps to 
troubleshoot?
> > >  Thank you.
> > > 
> > > Julia Tebbets
> > > French Teacher
> > > Sewickley Academy
> 
> Deanne Cobb
> Language Lab Manager
> Language Resource Centre
> University of Regina
> 
Ralph Schultz