Based on the following link,
shall I have to apply all the patches listed in the link such as DST
Java? I did apply the patch for iPrint though.

After I applied sp6, I can no longer connect the server using RConsoleJ.
I got the error saying RConsoleJException: not connected. If using
Remote Console IP, I got the error saying "Error connecting <10060>".

Can someone give me some advice?

Thank you,