Ping at least ensures your name resolution works (if you connect to
hostname) but it's ICMP so doing telnet would actually test end-to-end
TCP connectivity.

Raul

On 7/28/2012 7:52 PM, Blake wrote:
> They have been able to ping the server. I haven't tried telnet, but I will.
>

Blake,

You haven't yet tell us, what DBISAM version are you using?

--
Fernando Dias
[Team Elevate]

Blake

>Just to clarify--the issue I'd REALLY like to solve is this one where my app connects to the remote server sometimes but then not others. I think it's something wonky with the network since it only happens at the client site, never on my test network.

That's usually a good indication its not your fault

The problem is that the effect can be caused by hardware or software. For the client sites reporting it can they say it its all workstations connecting or just specific ones. If they can't ask them to record by workstation. If a specific one you've found your culprit. Also ask for a full software audit - then you have a guessing game, but at least you should be able to isolate the differences between their setup and yours.

Roy Lambert [Team Elevate]

Blake,

<< That is, I start it. It works. I exit. The users start it up, and it
works for them. They exit. A few hours or days later, they go to start it up
and it fails to connect. >>

Try to get the exact error message from them.  That will help a lot in
determining what the issue is - if it's a proper DBISAM engine error, then
that's a DBISAM problem.  If it's a DBISAM error that is just wrapping a
Winsock error (code), then it is external to DBISAM and an environmental
issue (firewall setting, most likely).

If you have any other questions, please let me know.

Tim Young
Elevate Software
www.elevatesoft.com

Thanks for everybody's help.

I've had the situation occur a couple of times where the app stops working--but now I've had it where it STARTS working again, even though I've changed nothing. So, I consider myself off the hook.

I'm still curious, but it's an academic curiosity at this point. Everything they use is secondhand, bargain-basement hardware (and I suspect unlicensed software), and I didn't sign on to debug their network.

Just as an FYI, I'm using DBISAM 4.3.

Thanks again.