Next time invest in a REAL PC?

just kidding! I love Macs. They're fun to work with and (usually) fewer bugs. Programming on them is a breeze compared to PCs (except I don't like Objective C). However, when you only got a small share of the marketplace, I'll stick with what everyone else is using.
Some things to check when this occurs:
Web home page. Is the server up or down?
Your internet connection. Are you having trouble with other sites? Try to ping the HnH server and see if you're getting a response and if there's any problems in the connection path.
Is anything on your computer suddenly blocking you from connecting to the server? Someone turn on a net nanny program? Update to an AV or firewall blocking things?
Opinions expressed in this statement are the authors alone and in no way reflect on the game development values of the actual developers.