This affects all IB version below 7 and more than likely FB. unless
a developer can for sure say this has been fixed.

I got this off the Borland news groups...

Charlie Caro(Interbase product manager) said that it's due to a weird
timing issue that the
server uses to manage single threaded access to the connection list
(I'm
paraphrasing here). I think the server can only manage creating one
connection at a time, and if another process is trying to connect and
it
gets blocked, then it waits a random amount of time to retry.