looks like i found out the problem, there are two units having same IP, and linux does not give a warning about IP conflict.

--- In firebird-support@yahoogroups.com, "wang960" <wang960@...> wrote:
>
> Hi,
>
> I have a delphi app that runs in Linux using Wine, it works quite well, but occasionally I got this error : 'Unable to complete request to host...'. I'd like to know if anybody has successfully used Wine with delphi app?
>
> is it possible to use the native Linux fbclient in situations like this?
>
> Thanks,
>
> wang
>