here is the relevant part of Max's post form the 'technical issues' thread

We have made a major change today and a major discovery. The change is somewhat invisible to you all but I might as well let you in on it. We changed our network to a new set of IP addresses. We used to be on the 207.103.203.130 network and are now on 207.103.42.130. None of this matter to you but there may be a delay in filtering the name and traffic to the new IP's.

Also, we got mudcat.org ordered and almost ready. This will eliminate the bounce to onstage computers. Our plan is to get everyone over to mudcat.org eventually. We will use deltablues.com as a mirror for a while (up to 6 monhts) and may do something else with it later.