The Cohhilition

Twitch changed their settings for connecting via IRC clients. Follow the directions below to get your oauth token needed instead of your password. Click the link below if you wish to see the full post by Twitch Support.

http://help.twitch.tv/customer/portal/a ... twitch-irc

Prerequisites
In order to connect to Twitch IRC, you must have two pieces of information:

1. The name of channel that you want to join.
2. A Twitch account.

Connecting
Once you have that information, you can then take it to connect to Twitch IRC with the following bits of information:

• The server name to connect to is: irc.twitch.tv.
• The port to connect to is 6667
• SSL is not supported for Twitch IRC.
• Your nickname must be your Twitch nickname
• Your password should be an OAuth token. You can get your oauth token here: www.twitchapps.com/tmi (Thanks Andrew Bashore!)
• An example "password" using this method would be "oauth:asdasd234asd234ad234asds23" without quotes.

This was the fix for me. No luck at all until Rodr1c showed me this.

Great find!!

Thanks a lot for the information, I was already wondering why I couldn't connect to IRC.

You can also go here https://www.nightdev.com/hosted/tmipassword.html