Hi Humberto,

My guess on this issue, is that the W2K workstation
completely drop the connection to the server, when no
packets are exchanged. This can be changed by some
obscure registry setting, I'm sure.

OTOH, if I don't mix things up, the automatic sending
of keep-alive packets have been dropped in FB for
Win systems, as they resulted in even worse problems.

So, if memory serves me right, the best work-around is
to add some application layer keep-alive handling in
your client-side app.

Regards,
Peter Jacobi


--- "Humberto Reis" <humbertoreis2000@y...> wrote:

> I am developing a commercial system using Delphi 5.0, Firebird 1.5,
> IBO 4.3Aa, Linux Red Hat 9.0 and in the work stations Win 2000.

[...]

> ISC ERROR MESSAGE: CODE 335544721
>
> ISC ERROR MESSAGE
>
> UNABLE TO COMPLETE NETWORK REQUEST TO HOST
> ERROR READING DATE FROM THE CONNECTION
> AN ESTABLISHED CONNECTION WAS ANNULLED BY THE SOFTWARE IN THE
> COMPUTER HOST