AIM Chatroom Death

...So we EOL developers hang out in an AOL chatroom.  Last week, I got logged out of it, and couldn't get back in.  ...Not sure why.  I hoped the problem would just go away, but it never resolved itself.  The error I was getting was:

Couldn't join chatroom "".

An AIM service error occurred.

Error: Serv:RequestTimeout

ChatError:NoError

Useless message!  But eventually I found a page describing the problem, with the suggestion to change the AIM server port from 5190 to 443.

That worked.