Some Internet providers block the ports needed for IRC. If this is the case for you, then you can use a proxy to join the channel through a web browser. You should be able to use this page to connect.
Editing the IRC home page
This page is in the "IRC Chat" space, which is specifically restricted for security purposes because we don't want untrusted people to be able to edit a page where we run a client, ask for username/password, etc. Only trusted people should edit this page.