team and group chat are always disconnected

hey, 2 or 3 days now I am disconected from the group chat and the team chat ( not in-game chat ) I mean I cant go blind pick because I cant even see the chat because it says tha I am disconected although I can see my friends online and talk with them. I cant talk when I am in group. Can anyone help with this one? anyway thanks.[slayer-pantheon-thumbs]