Not too sure what could be going wrong. This is after you've created a character through the website, correct? Then you took that character and used it's login credentials to connect using either the website or the telnet interface?
If you did manage to login, at the prompt you can type in "hosts" which will give you a list of hosts your character has and can connect to. Hint: you can use the tab key like on most real world UNIX shells to auto-complete the command line. For example: conn<hit tab twice here>. This should auto-complete to "connect x.x.x.x" where the exs represent the host associated with that character you logged in as.
If you need additional guidance, there is an active discord community, you use the link below to be invited to the server.