I have 33 rep and cannot chat; why? You have to have 20 to do so; is this an error? How do I fix it?
There is a delay when synchronizing reputation to chat. With the age of this question, it should be fixed now. However, if it still persists, log in to all other Stack Exchange sites you regularlyuse, and then go to http://chat.stackexchange.com and click the
Log In link in the top bar of http://chat.stackexchange.com if you are not logged in already. The message you get:
You must have 20 reputation on Stack Overflow to talk here. See the faq.
is shown to all users entering the site, and will go away after a second, wen it will either log in via StackAuth or otherwise automatically log in.