In an explicit deployment, users are unable to view ustream.tv videos. The web site loads but displays an error when users try to play any videos.
This issue is caused by the Ustream.tv video player. It does not use the browser's proxy settings and does not recognize any proxy auto-configuration (PAC) file. Packets are sent to the Ustream.tv servers directly/transparently instead of forwarding them to the proxy.
Users cannot play videos because of the following:
To resolve the issue. perform the appropriate fix:
Refer to information provided by Ustream.tv for what IP addresses and ports they use: