All Computing Platforms:

  1. If RealPlayer is installed on your Mac or PC, change its preferences by unchecking default settings for SMIL, Real-Time Streaming Protocol and Scalable Multicast.

Should you continue to have difficulties, kindly contact dsk@mit.edu and we'll try to get them sorted out. Please note that we are now finally streaming content over port 80 which should solve any firewall issues from which you may have been suffering.