Tcp/ip problem

Hi
I'm trying to install TSM server and I stuck in one moment.
When I want to configure it I have an erorr "Failed to comunicate with server using following parameters" and my tcpserveraddress is the same as hostname. I edited dsmserv.opt, dsm.opt but it doesn't works and I can't change server ip address.
How can I do it?

Thanks in advance