HI John

"nothing relevant was changed, honestly"...;-)

..and now it works on the second site and the system people havn't changed
anything. I can see the VPN icon flashing its little lights every minute
and however long I leave it inactive it works fine when I try to talk to the
database.

However on the first site which uses a route set up in the router I dont
have the VPN icon to watch. I've discovered a 'VPN Connection Management'
tool in the router which shows uptime, packets transmitted etc. After an
idle period the connection drops, if I then ping the remote server it
usually times out on the first 2 or 3 attempts and succeeds on the remaining
2 or 3. The router screen then shows the number of packets transmitted = to
the number of pings that succeeded. I am guessing that after the connection
drops the FB client issues its next keep alive packet, this fails (like the
first ping) and it flags the connection as lost. Further database activity
then fails.

If I reconnect this succeeds but I cant tell if it has tried more than once
to establish the connection, I assume it has.

So if my accumulation of guesses are correct then the quation becomes - does
the stay client stay alive try more than once, or just try once and give up
and could this be the problem?

Regards
Paul

> -----Original Message-----
> From: firebird-support@yahoogroups.com
> [mailto:firebird-support@yahoogroups.com] On Behalf Of John vd Waeter
> Sent: 05 November 2008 18:10
> To: firebird-support@yahoogroups.com
> Subject: Re: [firebird-support]Staying alive
>
> Paul,
>
> > Now a second customer has installed new equipment and the
> same thing
> > is happening there, while it worked fine before they made
> the change.
> > Their support guys tell me they dont think there are any relevant
> > settings in the firewall, router, server etc.
>
> What exactly is "new equipment"?
> If the change in behaviour occurred at the same time the "new
> equipment"
> was installed, it's likely the "new equipment" causing the trouble....
>
> High likely of course, not for sure...
>
> ,g. the moment my router was remotely (by the ISP) updated
> with new firmware, the NAT-behaviour of this router was
> slightly changed and some (not all) customers could no longer
> use the the services from one of ny servers... It was like
> finding a needle in a haystack, because "nothing relevant was
> changed, honestly"...
>
> John
>
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