Try going to the main page- community page
Then on the Top Bar you will see the word Community, to the left of the word
"community" you will see "Find Help" the white bar underneath those two word will say chat.

Click on chat then scroll down till you see the chat you want.

My chat's are under the "Rooms that Never Go Away'" then just keep scroll'n till you see the room you want.

Hope this helps,
Crew