Fast forwarding an MPEG-4 video that is playing through a transparent proxy for the first time can result in missing frames when the video is subsequently played from cache.
QuickTime* requests are filled using TCP unless the Enable Reliable Upstream option is unchecked for a service in the Web management interface or the no require-tcp-upstream command is issued for the service at the command line.
Disabling this feature for a service causes streams played through the service to be seriously degraded.
When accessing RealMedia* content on an upstream RealProxy 9 device through an ExceleratorTM RealMedia proxy service, the RealMedia content will not be cached.
When each of the following conditions are true for a RealMedia service:
No RealMedia content is cached on either of the Excelerator XL 1.0 devices.
Media Excelerator XL for Windows Media* has not been tested with the new Windows Media 9 server and Windows Media 9 client.
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