We had a similar issue on our Series A400 and we ended up tracing the whole 
thing to a single individual that was logging on, entering our menu, running 
a Speedware application that was resource hungry and then using a "no longer 
available" option to escape out of that Speedware application and then going 
into yet another application off a 
menu...Parent...child...grandchild...sometimes great-grandchild. And doing 
this same thing on 3 different sessions. People would just randomly get 
knocked off because the system was getting overwhelmed...I guess. After 
eliminating that escape option from the Speedware application, it's turned 
into a few times a year, but not every day like before.

Tom Hula

--------------------------------------------------
From: "Wong, Wilson" <[log in to unmask]>
Sent: Monday, November 10, 2008 2:23 PM
To: <[log in to unmask]>
Subject: [HP3000-L] User Disconnect Issues

> We have been experiencing a lot of user disconnects issues lately and have 
> not had a lot of success in pinpointing what is causing the problem nor 
> finding a good solution.  We have multiple HP3000 processors located here 
> on site and the problem seems to be occurring on almost all of them but we 
> have not found any commonality.  We have checked our network, hardware, 
> software, configurations, etc. with no luck.
>
> Here is an additional description of the problem.
>
> For some time now our user community has experienced a variety of 
> disconnects and we are running out of ideas to check. The typical 
> behaviors observed is, the user will be working in VPlus screens and 
> transitioning between screen, often to a non-VPlus screen (e.g. a menu), 
> they will see their screen go blank and after a bit the client (Minisoft 
> or Reflections) will report a disconnect.
>
> We have performed a variety of network tests and believe the network to be 
> stable and substantially error free. We have added memory to the 3000 as 
> well as looked at the networking tuning parameters. We have rebuilt the 
> workstations and reviewed power-saver, terminal emulator, network 
> settings. But clearly we have missed something.
>
> In the packet captures we have done on the HP3000 side, the work station 
> seems to be working fine for some extended period of time, and we will see 
> several duplicate ACK issued from the client and several retransmission 
> from the HP3000 then the connection "goes away". Occasionally we have seen 
> a RST issued from the HP3000, but generally not. At this point the HP3000 
> user session is also terminated.
>
> Any help would be much appreciated.
>
> Thanks, Wilson Wong
>
> Wilson Wong
> HP3000 Systems Administrator
> WA State Board for Community and Technical Colleges
> 3101 Northup Way, Suite 100
> Bellevue, WA  98004
> (425) 803-9764
> [log in to unmask]
>
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