My client is 1.1.6(NT) and server  is 1.1.3(Sun Solaris)

I cant do things about it to make them the same at least I cant touch
the server and it's too backward to change my client to 1.1.3.

I have modified as what you suggested, but problem  remained.

I have checked with adminstrator.

No blocking and firewall for my enviroment.

Do u think is correct :
This is my client version of java.policy
permission
java.net.SocketPermission "x:1099", "accept,connect,resolve";

where x is a IP Adreess that wish to connect.

My server side : the x above

permission
java.net.SocketPermission "localhost:1099", "accept,connect,listen,res
olve";

I have to stick with java  1 where I cant find any java.polocy file,so
I create my self and put into the directory where run those RMI
clasess,

Does this compatible ?

Because i read an article that say that it's backward compatiblity.