RMI accessable only from one network card

Hi everyone,

I've got a server running some RMI services.
Everything was working well when the server
had one network card 192.168.0.1 - it was
accessable by all the clients from the network.

BUT

When I've put second card into the server
192.168.2.201 - the second network can't access
the RMI services. The network itself is is O.K.
+ ping works
+ DNS works
+ clients can access HTTP server on 192.168.2.201
etc.

All, server and clients in both networks, are granted
"AllPermission".
Clients from the 192.168.2.* network can access
RMI services when ... the their IP address is changed
into 192.168.0.* network - of course the IP address
in Naming.lookup changes also into:
rmi://192.168.0.1/ServiceName

WHAT CAN BE THE REASON OF SUCH A BEHAVIOUR?
Thanks for any ideas ;-)