On 2/16/2005 at 2:33 PM sllimr7139 wrote:

> Good morning,
>
> A client of mine started reporting this problem about 6 months ago and
> I've been trying to figure out the cause and fix it for most of that
> time.
>
> The firebird server is located on IP address xxx.xxx.xxx.xxx, with
> clients located on the same ISP. The connection works just fine (a
> little slow maybe) for the most part.
>
> The problem is that the connection will mysteriously fall out from
> underneth the client.
>
> The exact error message is the client comes up with is:
>
> ISC ERROR MESSAGE:
> Unable to complete network request to host "xxx.xxx.xxx.xxx".
> Error reading data from the connection.
> An existing connection was forcibly closed by the remote host.
>
> What is causing the connection to be forcibly closed? The server logs
> show no message stating that it has done this or that there has been a
> problem.
>

How do you know the WAN link isn't dropping the connections? I see this happen very regularly with one specific ISP: connections will last somewhere between 5 and 25 minutes before they get dropped. Most annoying. With other ISPs I am able to keep connections up for as long as I wish. How do you know that the problem you are having isn't caused by the ISP in the middle?

HTH,

Dan.