I am using DELL Studio One 19 desktop computer with Windows XP as operating system. I use the computer for entertainment as well as for working purpose. I also access internet on daily basis for downloading various files, surfing, etc. Recently got an problem on my desktop, i was unable to connect to anything using the telnet software that comes with Windows. Also i have enabled the telnet service, but problem and throws error: "Could not open connection to the host, on port 23: Connection failed". Please help to fix this problem.