The 2008-Aug-01 outage happened because the S E B primary streaming server experienced an IP address change. Unless you re-clicked the standard Listen link, you couldn’t connect.
I remember it well. It was a seismic-caliber incident.
Source: A commented-out HTML blob.
Wow. I even wrote a blog post about it.
Which is both (a) succinct and (b) woefully outdated.