Hi, i have the similar problem.
but, didnot get solved.

situation is like this..

firebird server is on a location with 192.168.1.100 (whole office is
connected via router 192.168.1.1)

i am trying to connect from another office with ip 192.168.2.10
(office has router 192.168.2.1)

both the server and client has Hamachi installed.
when i tried to ping the ip, its not responding...when i ping the
hamachi ip 5.X.X.X its responding properly.

i put of the firewalls as well, 3050 is open in the server machine.

server is xp sp2 prof another one is xp sp2 home


what could be wrong? i am struggling for 1 week, looked all over on
net..no luck..

any ideas?

kornel