If your computer is protected by a network or stand-alone firewall,
and you are having trouble receiving the webcast, the firewall
may not be configured to allow webcast viewing. If you want
to view a webcast, your system administrator must "open" the firewall
to allow the webcast to stream through it. There is nothing
that can be changed in the webcast signal itself to allow a
webcast signal to penetrate a firewall unless the firewall is configured
to accept it.
For more information concerning firewalls and RealPlayer, please Click Here
For more information concerning firewalls and Windows Media Player,
please Click
Here
Systems with firewalls can still play some types of archived RealPlayer
video files. The files they are able to access are normally archived
using an HTTP protocol on a web server. Any live streaming files
that use the RTSP or PNM streaming protocols (we use RTSP) and
use only TCP or UDP Internet connections usually must be able to
have certain ports on a firewall opened by a network administrator.
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