I think I followed the directions pretty well but keep getting "The game client was unable to connect to the login server" (from Tequila) or "XMPP was unable to connect" from ParagonChat. And from Pidgin... You could try to see if a normal chat client will connect. If it won't, then there's probably a problem with your Titan account that may need to be fixed (some people have reported such issues). Try downloading pidgin (
https://pidgin.im/) and configuring it to connect to the Paragon Chat server. Add new account, select XMPP as the protocol, use your login name (short version without the @) as account name, chat.cohtitan.com as the domain, no resource, enter password, and then add the account. Then go to Tools,
Right up to this point works Ok -THEN the Rooms List option is greyed out. Deep Sigh! Please someone have pity on this unworthy gamer and show me the way to enlightenment... or at least how to get in to CoH. Room List, and in the panel select Get list. Accept paragon.chat.cohtitan.com as the conference server, and Find Rooms. You should see a bunch of rooms with names that look like zone names, and one called "paragonchat" among others. The zone name looking rooms are the broadcast channels for those zones, and the paragonchat room is the initial globalchat channel everyone is initially joined to when they first log into Paragon Chat.
If this works, then your login information is correct and working, and the problem is something involving Paragon Chat. If this doesn't work, your login information is wrong, you're typoing it, there's something wrong with your Titan account and may require an admin to fix, or something is blocking XMPP chat on your computer or in your ISP connection.