connection to host lost

Hi all,

I am connecting to a unix host from NT workstation via telnet. After working for around two hours I get the message "connection to host lost" What could the problem be?

TCP/IP connections use keep-alive signals to keep the connection open. Some client implementations of TCP/IP do not generate these signals properly and the connection die. There are other reasons that connections die too. Anytime the keep-alive signals are not (1) generated or (2) received, idle connection will time-out.